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[ Upstream commit cd8db057e93ddaacbec025b567490555d2bca280 ]
Make sure to detect short transfers when reading a device register.
The modem-status handling had sufficient error checks in place, but move
handling of short transfers into the register accessor function itself
for consistency.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 0d130367abf582e7cbf60075c2a7ab53817b1d14 ]
Make sure to log an error on short transfers when reading a device
register.
Also clear the provided buffer (which if often an uninitialised
automatic variable) on errors as the driver currently does not bother to
check for errors.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 808cf33d4817c730008de9b2736b357708a3d7f6 ]
The MIPS based MT7621 shares the same XHCI core as the newer generation of
ARM based SoCs. The driver works out of the box and we only need to make it
buildable in Kconfig.
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit ed62ca2f4f51c17841ea39d98c0c409cb53a3e10 upstream.
While running reboot tests w/ a specific set of USB devices (and
slub_debug enabled), I found that once every few hours my device would
be crashed with a stack that looked like this:
[ 14.012445] BUG: spinlock bad magic on CPU#0, modprobe/2091
[ 14.012460] lock: 0xffffffc0cb055978, .magic: ffffffc0, .owner: cryption contexts: %lu/%lu
[ 14.012460] /1025536097, .owner_cpu: 0
[ 14.012466] CPU: 0 PID: 2091 Comm: modprobe Not tainted 4.4.79 #352
[ 14.012468] Hardware name: Google Kevin (DT)
[ 14.012471] Call trace:
[ 14.012483] [<....>] dump_backtrace+0x0/0x160
[ 14.012487] [<....>] show_stack+0x20/0x28
[ 14.012494] [<....>] dump_stack+0xb4/0xf0
[ 14.012500] [<....>] spin_dump+0x8c/0x98
[ 14.012504] [<....>] spin_bug+0x30/0x3c
[ 14.012508] [<....>] do_raw_spin_lock+0x40/0x164
[ 14.012515] [<....>] _raw_spin_lock_irqsave+0x64/0x74
[ 14.012521] [<....>] __wake_up+0x2c/0x60
[ 14.012528] [<....>] async_completed+0x2d0/0x300
[ 14.012534] [<....>] __usb_hcd_giveback_urb+0xc4/0x138
[ 14.012538] [<....>] usb_hcd_giveback_urb+0x54/0xf0
[ 14.012544] [<....>] xhci_irq+0x1314/0x1348
[ 14.012548] [<....>] usb_hcd_irq+0x40/0x50
[ 14.012553] [<....>] handle_irq_event_percpu+0x1b4/0x3f0
[ 14.012556] [<....>] handle_irq_event+0x4c/0x7c
[ 14.012561] [<....>] handle_fasteoi_irq+0x158/0x1c8
[ 14.012564] [<....>] generic_handle_irq+0x30/0x44
[ 14.012568] [<....>] __handle_domain_irq+0x90/0xbc
[ 14.012572] [<....>] gic_handle_irq+0xcc/0x18c
Investigation using kgdb() found that the wait queue that was passed
into wake_up() had been freed (it was filled with slub_debug poison).
I analyzed and instrumented the code and reproduced. My current
belief is that this is happening:
1. async_completed() is called (from IRQ). Moves "as" onto the
completed list.
2. On another CPU, proc_reapurbnonblock_compat() calls
async_getcompleted(). Blocks on spinlock.
3. async_completed() releases the lock; keeps running; gets blocked
midway through wake_up().
4. proc_reapurbnonblock_compat() => async_getcompleted() gets the
lock; removes "as" from completed list and frees it.
5. usbdev_release() is called. Frees "ps".
6. async_completed() finally continues running wake_up(). ...but
wake_up() has a pointer to the freed "ps".
The instrumentation that led me to believe this was based on adding
some trace_printk() calls in a select few functions and then using
kdb's "ftdump" at crash time. The trace follows (NOTE: in the trace
below I cheated a little bit and added a udelay(1000) in
async_completed() after releasing the spinlock because I wanted it to
trigger quicker):
<...>-2104 0d.h2 13759034us!: async_completed at start: as=ffffffc0cc638200
mtpd-2055 3.... 13759356us : async_getcompleted before spin_lock_irqsave
mtpd-2055 3d..1 13759362us : async_getcompleted after list_del_init: as=ffffffc0cc638200
mtpd-2055 3.... 13759371us+: proc_reapurbnonblock_compat: free_async(ffffffc0cc638200)
mtpd-2055 3.... 13759422us+: async_getcompleted before spin_lock_irqsave
mtpd-2055 3.... 13759479us : usbdev_release at start: ps=ffffffc0cc042080
mtpd-2055 3.... 13759487us : async_getcompleted before spin_lock_irqsave
mtpd-2055 3.... 13759497us!: usbdev_release after kfree(ps): ps=ffffffc0cc042080
<...>-2104 0d.h2 13760294us : async_completed before wake_up(): as=ffffffc0cc638200
To fix this problem we can just move the wake_up() under the ps->lock.
There should be no issues there that I'm aware of.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 082df8be455ade361748f0385aa6c9c8d07be167 upstream.
Make sure that the controller is runtime resumed when system suspending
to avoid an external abort when accessing the interrupt registers:
Unhandled fault: external abort on non-linefetch (0x1008) at 0xd025840a
...
[<c05481a4>] (musb_default_readb) from [<c0545abc>] (musb_disable_interrupts+0x84/0xa8)
[<c0545abc>] (musb_disable_interrupts) from [<c0546b08>] (musb_suspend+0x38/0xb8)
[<c0546b08>] (musb_suspend) from [<c04a57f8>] (platform_pm_suspend+0x3c/0x64)
This is easily reproduced on a BBB by enabling the peripheral port only
(as the host port may enable the shared clock) and keeping it
disconnected so that the controller is runtime suspended. (Well, you
would also need to the not-yet-merged am33xx-suspend patches by Dave
Gerlach to be able to suspend the BBB.)
This is a regression that was introduced by commit 1c4d0b4e1806 ("usb:
musb: Remove pm_runtime_set_irq_safe") which allowed the parent glue
device to runtime suspend and thereby exposed a couple of older issues:
Register accesses without explicitly making sure the controller is
runtime resumed during suspend was first introduced by commit c338412b5ded
("usb: musb: unconditionally save and restore the context on suspend")
in 3.14.
Commit a1fc1920aaaa ("usb: musb: core: make sure musb is in RPM_ACTIVE on
resume") later started setting the RPM status to active during resume,
and this was also implicitly relying on the parent always being active.
Since commit 71723f95463d ("PM / runtime: print error when activating a
child to unactive parent") this now also results in the following
warning:
musb-hdrc musb-hdrc.0: runtime PM trying to activate child device
musb-hdrc.0 but parent (47401400.usb) is not active
This patch has been verified on 4.13-rc2, 4.12 and 4.9 using a BBB
(the dsps glue would always be active also in 4.8).
Fixes: c338412b5ded ("usb: musb: unconditionally save and restore the context on suspend")
Fixes: a1fc1920aaaa ("usb: musb: core: make sure musb is in RPM_ACTIVE on resume")
Fixes: 1c4d0b4e1806 ("usb: musb: Remove pm_runtime_set_irq_safe")
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Daniel Mack <zonque@gmail.com>
Cc: Dave Gerlach <d-gerlach@ti.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e6b422b88b46353cf596e0db6dc0e39d50d90d6e upstream.
The following commit cause a regression on ATI chipsets.
'commit e788787ef4f9 ("usb:xhci:Add quirk for Certain
failing HP keyboard on reset after resume")'
This causes pinfo->smbus_dev to be wrongly set to NULL on
systems with the ATI chipset that this function checks for first.
Added conditional check for AMD chipsets to avoid the overwriting
pinfo->smbus_dev.
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: e788787ef4f9 ("usb:xhci:Add quirk for Certain
failing HP keyboard on reset after resume")
cc: Nehal Shah <Nehal-bakulchandra.Shah@amd.com>
Signed-off-by: Sandeep Singh <Sandeep.Singh@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a1279ef74eeeb5f627f091c71d80dd7ac766c99d upstream.
Commit e0429362ab15
("usb: Add device quirk for Logitech HD Pro Webcams C920 and C930e")
introduced quirk to workaround an issue with some Logitech webcams.
Apparently model C920-C has the same issue so applying
the same quirk as well.
See aforementioned commit message for detailed explanation of the problem.
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 169e86546f5712179709de23cd64bbb15f199fab upstream.
This commit adds support (an ID, really) for D-Link DWM-157 hardware
version C1 USB modem to option driver.
According to manufacturer-provided Windows INF file the device has four
serial ports:
"D-Link HSPA+DataCard Diagnostics Interface" (interface 2; modem port),
"D-Link HSPA+DataCard NMEA Device" (interface 3),
"D-Link HSPA+DataCard Speech Port" (interface 4),
"D-Link HSPA+DataCard Debug Port" (interface 5).
usb-devices output:
T: Bus=05 Lev=01 Prnt=01 Port=04 Cnt=01 Dev#= 3 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=2001 ProdID=7d0e Rev=03.00
S: Manufacturer=D-Link,Inc
S: Product=D-Link DWM-157
C: #Ifs= 7 Cfg#= 1 Atr=a0 MxPwr=500mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=0e Prot=00 Driver=cdc_mbim
I: If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=02 Prot=01 Driver=option
I: If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 4 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I: If#= 6 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit de3af5bf259d7a0bfaac70441c8568ab5998d80c upstream.
Corsair Strafe RGB keyboard has trouble to initialize:
[ 1.679455] usb 3-6: new full-speed USB device number 4 using xhci_hcd
[ 6.871136] usb 3-6: unable to read config index 0 descriptor/all
[ 6.871138] usb 3-6: can't read configurations, error -110
[ 6.991019] usb 3-6: new full-speed USB device number 5 using xhci_hcd
[ 12.246642] usb 3-6: unable to read config index 0 descriptor/all
[ 12.246644] usb 3-6: can't read configurations, error -110
[ 12.366555] usb 3-6: new full-speed USB device number 6 using xhci_hcd
[ 17.622145] usb 3-6: unable to read config index 0 descriptor/all
[ 17.622147] usb 3-6: can't read configurations, error -110
[ 17.742093] usb 3-6: new full-speed USB device number 7 using xhci_hcd
[ 22.997715] usb 3-6: unable to read config index 0 descriptor/all
[ 22.997716] usb 3-6: can't read configurations, error -110
Although it may work after several times unpluging/pluging:
[ 68.195240] usb 3-6: new full-speed USB device number 11 using xhci_hcd
[ 68.337459] usb 3-6: New USB device found, idVendor=1b1c, idProduct=1b20
[ 68.337463] usb 3-6: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 68.337466] usb 3-6: Product: Corsair STRAFE RGB Gaming Keyboard
[ 68.337468] usb 3-6: Manufacturer: Corsair
[ 68.337470] usb 3-6: SerialNumber: 0F013021AEB8046755A93ED3F5001941
Tried three quirks: USB_QUIRK_DELAY_INIT, USB_QUIRK_NO_LPM and
USB_QUIRK_DEVICE_QUALIFIER, user confirmed that USB_QUIRK_DELAY_INIT alone
can workaround this issue. Hence add the quirk for Corsair Strafe RGB.
BugLink: https://bugs.launchpad.net/bugs/1678477
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit ed18c5fa945768a9bec994e786edbbbc7695acf6 upstream.
This optimization significantly reduces xhci driver load time.
In ACPI tables the acpi companion port devices are children of
the hub device. The port devices are identified by their port number
returned by the ACPI _ADR method.
_ADR 0 is reserved for the root hub device.
The current implementation to find a acpi companion port device
loops through all acpi port devices under that parent hub, evaluating
their _ADR method each time a new port device is added.
for a xHC controller with 25 ports under its roothub it
will end up invoking ACPI bytecode 625 times before all ports
are ready, making it really slow.
The _ADR values are already read and cached earler. So instead of
running the bytecode again we can check the cached _ADR value first,
and then fall back to the old way.
As one of the more significant changes, the xhci load time on
Intel kabylake reduced by 70%, (28ms) from
initcall xhci_pci_init+0x0/0x49 returned 0 after 39537 usecs
to
initcall xhci_pci_init+0x0/0x49 returned 0 after 11270 usecs
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e788787ef4f9c24aafefc480a8da5f92b914e5e6 upstream.
Certain HP keyboards would keep inputting a character automatically which
is the wake-up key after S3 resume
On some AMD platforms USB host fails to respond (by holding resume-K) to
USB device (an HP keyboard) resume request within 1ms (TURSM) and ensures
that resume is signaled for at least 20 ms (TDRSMDN), which is defined in
USB 2.0 spec. The result is that the keyboard is out of function.
In SNPS USB design, the host responds to the resume request only after
system gets back to S0 and the host gets to functional after the internal
HW restore operation that is more than 1 second after the initial resume
request from the USB device.
As a workaround for specific keyboard ID(HP Keyboards), applying port reset
after resume when the keyboard is plugged in.
Signed-off-by: Sandeep Singh <Sandeep.Singh@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
cc: Nehal Shah <Nehal-bakulchandra.Shah@amd.com>
Reviewed-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 7496cfe5431f21da5d27a8388c326397e3f0a5db upstream.
Moshi USB to Ethernet Adapter internally uses a Genesys Logic hub to
connect to Realtek r8153.
The Realtek r8153 ethernet does not work on the internal hub, no-lpm quirk
can make it work.
Since another r8153 dongle at my hand does not have the issue, so add
the quirk to the Genesys Logic hub instead.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 2eac13624364db5b5e1666ae0bb3a4d36bc56b6e upstream.
While unlink an urb, if the urb has been programmed in the controller,
the controller driver might do some hw related actions to tear down the
urb.
Currently usb_hcd_flush_endpoint() passes each urb from the head of the
endpoint's urb_list to the controller driver, which could make the
controller driver think each urb has been programmed and take the
unnecessary actions for each urb.
This patch changes the behavior in usb_hcd_flush_endpoint() to pass the
urbs from the tail of the list, to avoid any unnecessary actions in an
controller driver.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 94c43b9897abf4ea366ed4dba027494e080c7050 upstream.
Some buggy USB disk adapters disconnect and reconnect multiple times
during the enumeration procedure. This may lead to a device
connecting at full speed instead of high speed, because when the USB
stack sees that a device isn't able to enumerate at high speed, it
tries to hand the connection over to a full-speed companion
controller.
The logic for doing this is careful to check that the device is still
connected. But this check is inadequate if the device disconnects and
reconnects before the check is done. The symptom is that a device
works, but much more slowly than it is capable of operating.
The situation was made worse recently by commit 22547c4cc4fe ("usb:
hub: Wait for connection to be reestablished after port reset"), which
increases the delay following a reset before a disconnect is
recognized, thus giving the device more time to reconnect.
This patch makes the check more robust. If the device was
disconnected at any time during enumeration, we will now skip the
full-speed handover.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Zdenek Kabelac <zkabelac@redhat.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 2acecd58969897795cf015c9057ebd349a3fda8a upstream.
The latest HW manual (Rev.0.55) shows us this UGCTRL2.VBUSSEL bit.
If the bit sets to 1, the VBUS drive is controlled by phy related
registers (called "UCOM Registers" on the manual). Since R-Car Gen3
environment will control VBUS by phy-rcar-gen3-usb2 driver,
the UGCTRL2.VBUSSEL bit should be set to 1. So, this patch fixes
the register's value. Otherwise, even if the ID pin indicates to
peripheral, the R-Car will output USBn_PWEN to 1 when a host driver
is running.
Fixes: de18757e272d ("usb: renesas_usbhs: add R-Car Gen3 power control"
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit aca5b9ebd096039657417c321a9252c696b359c2 upstream.
According to the gadget.h, a "complete" function will always be called
with interrupts disabled. However, sometimes usb3_request_done() function
is called with interrupts enabled. So, this function should be held
by spin_lock_irqsave() to disable interruption. Also, this driver has
to call spin_unlock() to avoid spinlock recursion by this driver before
calling usb_gadget_giveback_request().
Reported-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Tested-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com>
Fixes: 746bfe63bba3 ("usb: gadget: renesas_usb3: add support for Renesas USB3.0 peripheral controller")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 89f23d51defcb94a5026d4b5da13faf4e1150a6f upstream.
Similar to commit d595259fbb7a ("usb-storage: Add ignore-residue quirk for
Initio INIC-3619") for INIC-3169 in unusual_devs.h but INIC-3069 already
present in unusual_uas.h. Both in same controller IC family.
Issue is that MakeMKV fails during key exchange with installed bluray drive
with following error:
002004:0000 Error 'Scsi error - ILLEGAL REQUEST:COPY PROTECTION KEY EXCHANGE FAILURE - KEY NOT ESTABLISHED'
occurred while issuing SCSI command AD010..080002400 to device 'SG:dev_11:0'
Signed-off-by: Alan Swanson <reiver@improbability.net>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit cd5a6a4fdaba150089af2afc220eae0fef74878a upstream.
Make usb_hc_died() clear the HCD_FLAG_RH_RUNNING flag for the shared
HCD and set HCD_FLAG_DEAD for it, in analogy with what is done for
the primary one.
Among other thigs, this prevents check_root_hub_suspended() from
returning -EBUSY for dead HCDs which helps to work around system
suspend issues in some situations.
This actually fixes occasional suspend failures on one of my test
machines.
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 45d73860530a14c608f410b91c6c341777bfa85d upstream.
commit 68fe05e2a451 ("usb: musb: fix tx fifo flush handling") drops the
1ms delay trying to solve the long disconnect time issue when
application queued many tx urbs. However, the 1ms delay is needed for
some use cases, for example, without the delay, reconnecting AR9271 WIFI
dongle no longer works if the connection is dropped from the AP.
So let's add back the 1ms delay in musb_h_tx_flush_fifo(), and solve the
long disconnect time problem with a separate patch for
usb_hcd_flush_endpoint().
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 3b6bcd3d093c698d32e93d4da57679b8fbc5e01e upstream.
This adds a new ATEN device id for a new pl2303-based device.
Reported-by: Peter Kuo <PeterKuo@aten.com.tw>
Cc: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 9585e340db9f6cc1c0928d82c3a23cc4460f0a3f upstream.
The German Telekom offers a ZigBee USB Stick under the brand name Qivicon
for their SmartHome Home Base in its 1. Generation. The productId is not
known by the according kernel module, this patch adds support for it.
Signed-off-by: Stefan Triller <github@stefantriller.de>
Reviewed-by: Frans Klaver <fransklaver@gmail.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit fd1b8668af59a11bb754a6c9b0051c6c5ce73b74 upstream.
Add device id for D-Link DWM-222.
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 43aef5c2ca90535b3227e97e71604291875444ed ]
This fixes an error message that was probably copied and pasted. The same
message is used for both the in and out endpoints, so it makes it impossible
to know which one actually failed because both cases say "IN".
Make the out endpoint error message say "OUT".
Signed-off-by: David Lechner <david@lechnology.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 12a7f17fac5b370bec87259e4c718faf563ce900 ]
Now races can happen between interrupt handler execution and PM runtime in
error handling code path in probe and in dwc3_omap_remove() which will lead
to system crash:
in probe:
...
err1:
pm_runtime_put_sync(dev);
^^ PM runtime can race with IRQ handler when deferred probing happening
due to extcon
pm_runtime_disable(dev);
return ret;
in dwc3_omap_remove:
...
dwc3_omap_disable_irqs(omap);
^^ IRQs are disabled in HW, but handler may still run
of_platform_depopulate(omap->dev);
pm_runtime_put_sync(&pdev->dev);
^^ PM runtime can race with IRQ handler
pm_runtime_disable(&pdev->dev);
return 0;
So, OMAP DWC3 IRQ need to be disabled before calling
pm_runtime_put() in probe and in dwc3_omap_remove().
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b8b9c974afee685789fcbb191b52d1790be3608c upstream.
A gadget driver will not disable eps immediately when ->disconnect()
is called. But, since this driver assumes all eps stop after
the ->disconnect(), unexpected behavior happens (especially in system
suspend).
So, this patch disables all eps in usbhsg_try_stop(). After disabling
eps by renesas_usbhs driver, since some functions will be called by
both a gadget and renesas_usbhs driver, renesas_usbhs driver should
protect uep->pipe. To protect uep->pipe easily, this patch adds a new
lock in struct usbhsg_uep.
Fixes: 2f98382dc ("usb: renesas_usbhs: Add Renesas USBHS Gadget")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 59a0879a0e17b2e43ecdc5e3299da85b8410d7ce upstream.
This patch fixes an issue that some registers may be not initialized
after resume if the USBHSF_RUNTIME_PWCTRL is not set. Otherwise,
if a cable is not connected, the driver will not enable INTENB0.VBSE
after resume. And then, the driver cannot detect the VBUS.
Fixes: ca8a282a5373 ("usb: gadget: renesas_usbhs: add suspend/resume support")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit fe855789d605590e57f9cd968d85ecce46f5c3fd upstream.
Add device-id entry for DATECS FP-2000 fiscal printer needing the
NO_UNION_NORMAL quirk.
Reported-by: Anton Avramov <lukav@lukav.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 446230f52a5bef593554510302465eabab45a372 upstream.
When us->extra is null the driver is not initialized, however, a
later call to osd200_scsi_to_ata is made that dereferences
us->extra, causing a null pointer dereference. The code
currently detects and reports that the driver is not initialized;
add a return to avoid the subsequent dereference issue in this
check.
Thanks to Alan Stern for pointing out that srb->result needs setting
to DID_ERROR << 16
Detected by CoverityScan, CID#100308 ("Dereference after null check")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 9da5a1092b13468839b1a864b126cacfb72ad016 upstream.
When USB Ethernet is plugged in ASMEDIA ASM1042A xHCI host, bad
performance was manifesting in Web browser use (like download
large file such as ISO image). It is known limitation of
ASM1042A that is not compatible with driver scheduling,
As a workaround we can modify flow control handling of ASM1042A.
The register we modify is changes the behavior
[use quirk bit 28, usleep_range 40-60us, empty non-pci function -Mathias]
Signed-off-by: Jiahau Chang <Lars_chang@asmedia.com.tw>
Signed-off-by: Ian Pilcher <arequipeno@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 4b895868bb2da60a386a17cde3bf9ecbc70c79f4 upstream.
This off by one in stream_id indexing caused NULL pointer dereference and
soft lockup on machines with USB attached SCSI devices connected to a
hotpluggable xhci controller.
The code that cleans up pending URBs for dead hosts tried to dereference
a stream ring at the invalid stream_id 0.
ep->stream_info->stream_rings[0] doesn't point to a ring.
Start looping stream_id from 1 like in all the other places in the driver,
and check that the ring exists before trying to kill URBs on it.
Reported-by: rocko r <rockorequin@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit a54408d0a004757789863d74e29c2297edae0b4d upstream.
A uncleared PLC (port link change) bit will prevent furuther port event
interrupts for that port. Leaving it uncleared caused get_port_status()
to timeout after 20000ms while waiting to get the final port event
interrupt for resume -> U0 state change.
This is a targeted fix for a specific case where we get a port resume event
racing with xhci resume. The port event interrupt handler notices xHC is
not yet running and bails out early, leaving PLC uncleared.
The whole xhci port resuming needs more attention, but while working on it
it anyways makes sense to always ensure PLC is cleared in get_port_status
before setting a new link state and waiting for its completion.
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit dec08194ffeccfa1cf085906b53d301930eae18f upstream.
For AMD Promontory xHCI host, although you can disable USB 2.0 ports in
BIOS settings, those ports will be enabled anyway after you remove a
device on that port and re-plug it in again. It's a known limitation of
the chip. As a workaround we can clear the PORT_WAKE_BITS.
This will disable wake on connect, disconnect and overcurrent on
AMD Promontory USB2 ports
[checkpatch cleanup and commit message reword -Mathias]
Cc: Tsai Nicholas <nicholas.tsai@amd.com>
Signed-off-by: Jiahau Chang <Lars_Chang@asmedia.com.tw>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 996fab55d864ed604158f71724ff52db1c2454a3 upstream.
A new Sierra Wireless EM7305 device ID used in a Toshiba laptop.
Reported-by: Petr Kloc <petr_kloc@yahoo.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8fb060da715ad10fe956d7c0077b2fb0c12bb9d7 upstream.
Add two Longcheer device-id entries which specifically enables a
Telewell TW-3G HSPA+ branded modem (0x9801).
Reported-by: Teemu Likonen <tlikonen@iki.fi>
Reported-by: Bjørn Mork <bjorn@mork.no>
Reported-by: Lars Melin <larsm17@gmail.com>
Tested-by: Teemu Likonen <tlikonen@iki.fi>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit e271b2c909a22a2c13b2d5f77f2ce0091b74540c upstream.
Make sure to release any OF device-node reference taken when creating
the USB device.
Note that we currently do not hold a reference to the root hub
device-tree node (i.e. the parent controller node).
Fixes: 69bec7259853 ("USB: core: let USB device know device node")
Acked-by: Peter Chen <peter.chen@nxp.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b3b51417d0af63fb9a06662dc292200aed9ea53f upstream.
The usbip stack dynamically allocates the transfer_buffer and
setup_packet of each urb that got generated by the tcp to usb stub code.
As these pointers are always used only once we will set them to NULL
after use. This is done likewise to the free_urb code in vudc_dev.c.
This patch fixes double kfree situations where the usbip remote side
added the URB_FREE_BUFFER.
Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6836796de4019944f4ba4c99a360e8250fd2e735 upstream.
The USB core and sysfs will attempt to enumerate certain parameters
which are unsupported by the au0828 - causing inconsistent behavior
and sometimes causing the chip to reset. Avoid making these calls.
This problem manifested as intermittent cases where the au8522 would
be reset on analog video startup, in particular when starting up ALSA
audio streaming in parallel - the sysfs entries created by
snd-usb-audio on streaming startup would result in unsupported control
messages being sent during tuning which would put the chip into an
unknown state.
Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit fd90f73a9925f248d696bde1cfc836d9fda5570d upstream.
Added the USB serial device ID for the CEL ZigBee EM3588
radio stick.
Signed-off-by: Jeremie Rapin <rapinj@gmail.com>
Acked-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 04fb365c453e14ff9e8a28f1c46050d920a27a4a upstream.
%p will leak kernel pointers, so let's not expose the information on
dmesg and instead use %pK. %pK will only show the actual addresses if
explicitly enabled under /proc/sys/kernel/kptr_restrict.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit ca02954ada711b08e5b0d84590a631fd63ed39f9 ]
USBTrdTim must be programmed to 0x5 when phy has a UTMI+ 16-bit wide
interface or 0x9 when it has a 8-bit wide interface.
GUSBCFG reset value (Value After Reset: 0x1400) sets USBTrdTim to 0x5.
In case of 8-bit UTMI+, without clearing GUSBCFG.USBTRDTIM mask, USBTrdTim
results in 0xD (0x5 | 0x9).
That's why we need to clear GUSBCFG.USBTRDTIM mask before setting USBTrdTim
value, to ensure USBTrdTim is correctly set in case of 8-bit UTMI+.
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b3ce3ce02d146841af012d08506b4071db8ffde3 upstream.
When system try to close /dev/usb-ffs/adb/ep0 on one core, at the same
time another core try to attach new UDC, which will cause deadlock as
below scenario. Thus we should release ffs lock before issuing
unregister_gadget_item().
[ 52.642225] c1 ======================================================
[ 52.642228] c1 [ INFO: possible circular locking dependency detected ]
[ 52.642236] c1 4.4.6+ #1 Tainted: G W O
[ 52.642241] c1 -------------------------------------------------------
[ 52.642245] c1 usb ffs open/2808 is trying to acquire lock:
[ 52.642270] c0 (udc_lock){+.+.+.}, at: [<ffffffc00065aeec>]
usb_gadget_unregister_driver+0x3c/0xc8
[ 52.642272] c1 but task is already holding lock:
[ 52.642283] c0 (ffs_lock){+.+.+.}, at: [<ffffffc00066b244>]
ffs_data_clear+0x30/0x140
[ 52.642285] c1 which lock already depends on the new lock.
[ 52.642287] c1
the existing dependency chain (in reverse order) is:
[ 52.642295] c0
-> #1 (ffs_lock){+.+.+.}:
[ 52.642307] c0 [<ffffffc00012340c>] __lock_acquire+0x20f0/0x2238
[ 52.642314] c0 [<ffffffc000123b54>] lock_acquire+0xe4/0x298
[ 52.642322] c0 [<ffffffc000aaf6e8>] mutex_lock_nested+0x7c/0x3cc
[ 52.642328] c0 [<ffffffc00066f7bc>] ffs_func_bind+0x504/0x6e8
[ 52.642334] c0 [<ffffffc000654004>] usb_add_function+0x84/0x184
[ 52.642340] c0 [<ffffffc000658ca4>] configfs_composite_bind+0x264/0x39c
[ 52.642346] c0 [<ffffffc00065b348>] udc_bind_to_driver+0x58/0x11c
[ 52.642352] c0 [<ffffffc00065b49c>] usb_udc_attach_driver+0x90/0xc8
[ 52.642358] c0 [<ffffffc0006598e0>] gadget_dev_desc_UDC_store+0xd4/0x128
[ 52.642369] c0 [<ffffffc0002c14e8>] configfs_write_file+0xd0/0x13c
[ 52.642376] c0 [<ffffffc00023c054>] vfs_write+0xb8/0x214
[ 52.642381] c0 [<ffffffc00023cad4>] SyS_write+0x54/0xb0
[ 52.642388] c0 [<ffffffc000085ff0>] el0_svc_naked+0x24/0x28
[ 52.642395] c0
-> #0 (udc_lock){+.+.+.}:
[ 52.642401] c0 [<ffffffc00011e3d0>] print_circular_bug+0x84/0x2e4
[ 52.642407] c0 [<ffffffc000123454>] __lock_acquire+0x2138/0x2238
[ 52.642412] c0 [<ffffffc000123b54>] lock_acquire+0xe4/0x298
[ 52.642420] c0 [<ffffffc000aaf6e8>] mutex_lock_nested+0x7c/0x3cc
[ 52.642427] c0 [<ffffffc00065aeec>] usb_gadget_unregister_driver+0x3c/0xc8
[ 52.642432] c0 [<ffffffc00065995c>] unregister_gadget_item+0x28/0x44
[ 52.642439] c0 [<ffffffc00066b34c>] ffs_data_clear+0x138/0x140
[ 52.642444] c0 [<ffffffc00066b374>] ffs_data_reset+0x20/0x6c
[ 52.642450] c0 [<ffffffc00066efd0>] ffs_data_closed+0xac/0x12c
[ 52.642454] c0 [<ffffffc00066f070>] ffs_ep0_release+0x20/0x2c
[ 52.642460] c0 [<ffffffc00023dbe4>] __fput+0xb0/0x1f4
[ 52.642466] c0 [<ffffffc00023dd9c>] ____fput+0x20/0x2c
[ 52.642473] c0 [<ffffffc0000ee944>] task_work_run+0xb4/0xe8
[ 52.642482] c0 [<ffffffc0000cd45c>] do_exit+0x360/0xb9c
[ 52.642487] c0 [<ffffffc0000cf228>] do_group_exit+0x4c/0xb0
[ 52.642494] c0 [<ffffffc0000dd3c8>] get_signal+0x380/0x89c
[ 52.642501] c0 [<ffffffc00008a8f0>] do_signal+0x154/0x518
[ 52.642507] c0 [<ffffffc00008af00>] do_notify_resume+0x70/0x78
[ 52.642512] c0 [<ffffffc000085ee8>] work_pending+0x1c/0x20
[ 52.642514] c1
other info that might help us debug this:
[ 52.642517] c1 Possible unsafe locking scenario:
[ 52.642518] c1 CPU0 CPU1
[ 52.642520] c1 ---- ----
[ 52.642525] c0 lock(ffs_lock);
[ 52.642529] c0 lock(udc_lock);
[ 52.642533] c0 lock(ffs_lock);
[ 52.642537] c0 lock(udc_lock);
[ 52.642539] c1
*** DEADLOCK ***
[ 52.642543] c1 1 lock held by usb ffs open/2808:
[ 52.642555] c0 #0: (ffs_lock){+.+.+.}, at: [<ffffffc00066b244>]
ffs_data_clear+0x30/0x140
[ 52.642557] c1 stack backtrace:
[ 52.642563] c1 CPU: 1 PID: 2808 Comm: usb ffs open Tainted: G
[ 52.642565] c1 Hardware name: Spreadtrum SP9860g Board (DT)
[ 52.642568] c1 Call trace:
[ 52.642573] c1 [<ffffffc00008b430>] dump_backtrace+0x0/0x170
[ 52.642577] c1 [<ffffffc00008b5c0>] show_stack+0x20/0x28
[ 52.642583] c1 [<ffffffc000422694>] dump_stack+0xa8/0xe0
[ 52.642587] c1 [<ffffffc00011e548>] print_circular_bug+0x1fc/0x2e4
[ 52.642591] c1 [<ffffffc000123454>] __lock_acquire+0x2138/0x2238
[ 52.642595] c1 [<ffffffc000123b54>] lock_acquire+0xe4/0x298
[ 52.642599] c1 [<ffffffc000aaf6e8>] mutex_lock_nested+0x7c/0x3cc
[ 52.642604] c1 [<ffffffc00065aeec>] usb_gadget_unregister_driver+0x3c/0xc8
[ 52.642608] c1 [<ffffffc00065995c>] unregister_gadget_item+0x28/0x44
[ 52.642613] c1 [<ffffffc00066b34c>] ffs_data_clear+0x138/0x140
[ 52.642618] c1 [<ffffffc00066b374>] ffs_data_reset+0x20/0x6c
[ 52.642621] c1 [<ffffffc00066efd0>] ffs_data_closed+0xac/0x12c
[ 52.642625] c1 [<ffffffc00066f070>] ffs_ep0_release+0x20/0x2c
[ 52.642629] c1 [<ffffffc00023dbe4>] __fput+0xb0/0x1f4
[ 52.642633] c1 [<ffffffc00023dd9c>] ____fput+0x20/0x2c
[ 52.642636] c1 [<ffffffc0000ee944>] task_work_run+0xb4/0xe8
[ 52.642640] c1 [<ffffffc0000cd45c>] do_exit+0x360/0xb9c
[ 52.642644] c1 [<ffffffc0000cf228>] do_group_exit+0x4c/0xb0
[ 52.642647] c1 [<ffffffc0000dd3c8>] get_signal+0x380/0x89c
[ 52.642651] c1 [<ffffffc00008a8f0>] do_signal+0x154/0x518
[ 52.642656] c1 [<ffffffc00008af00>] do_notify_resume+0x70/0x78
[ 52.642659] c1 [<ffffffc000085ee8>] work_pending+0x1c/0x20
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Jerry Zhang <zhangjerry@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b7f73850bb4fac1e2209a4dd5e636d39be92f42c upstream.
Companion descriptor is only used for SuperSpeed endpoints,
if the endpoints are HighSpeed or FullSpeed, the Companion
descriptor will not allocated, so we can only access it if
gadget is SuperSpeed.
I can reproduce this issue on Rockchip platform rk3368 SoC
which supports USB 2.0, and use functionfs for ADB. Kernel
build with CONFIG_KASAN=y and CONFIG_SLUB_DEBUG=y report
the following BUG:
==================================================================
BUG: KASAN: slab-out-of-bounds in ffs_func_set_alt+0x224/0x3a0 at addr ffffffc0601f6509
Read of size 1 by task swapper/0/0
============================================================================
BUG kmalloc-256 (Not tainted): kasan: bad access detected
----------------------------------------------------------------------------
Disabling lock debugging due to kernel taint
INFO: Allocated in ffs_func_bind+0x52c/0x99c age=1275 cpu=0 pid=1
alloc_debug_processing+0x128/0x17c
___slab_alloc.constprop.58+0x50c/0x610
__slab_alloc.isra.55.constprop.57+0x24/0x34
__kmalloc+0xe0/0x250
ffs_func_bind+0x52c/0x99c
usb_add_function+0xd8/0x1d4
configfs_composite_bind+0x48c/0x570
udc_bind_to_driver+0x6c/0x170
usb_udc_attach_driver+0xa4/0xd0
gadget_dev_desc_UDC_store+0xcc/0x118
configfs_write_file+0x1a0/0x1f8
__vfs_write+0x64/0x174
vfs_write+0xe4/0x200
SyS_write+0x68/0xc8
el0_svc_naked+0x24/0x28
INFO: Freed in inode_doinit_with_dentry+0x3f0/0x7c4 age=1275 cpu=7 pid=247
...
Call trace:
[<ffffff900808aab4>] dump_backtrace+0x0/0x230
[<ffffff900808acf8>] show_stack+0x14/0x1c
[<ffffff90084ad420>] dump_stack+0xa0/0xc8
[<ffffff90082157cc>] print_trailer+0x188/0x198
[<ffffff9008215948>] object_err+0x3c/0x4c
[<ffffff900821b5ac>] kasan_report+0x324/0x4dc
[<ffffff900821aa38>] __asan_load1+0x24/0x50
[<ffffff90089eb750>] ffs_func_set_alt+0x224/0x3a0
[<ffffff90089d3760>] composite_setup+0xdcc/0x1ac8
[<ffffff90089d7394>] android_setup+0x124/0x1a0
[<ffffff90089acd18>] _setup+0x54/0x74
[<ffffff90089b6b98>] handle_ep0+0x3288/0x4390
[<ffffff90089b9b44>] dwc_otg_pcd_handle_out_ep_intr+0x14dc/0x2ae4
[<ffffff90089be85c>] dwc_otg_pcd_handle_intr+0x1ec/0x298
[<ffffff90089ad680>] dwc_otg_pcd_irq+0x10/0x20
[<ffffff9008116328>] handle_irq_event_percpu+0x124/0x3ac
[<ffffff9008116610>] handle_irq_event+0x60/0xa0
[<ffffff900811af30>] handle_fasteoi_irq+0x10c/0x1d4
[<ffffff9008115568>] generic_handle_irq+0x30/0x40
[<ffffff90081159b4>] __handle_domain_irq+0xac/0xdc
[<ffffff9008080e9c>] gic_handle_irq+0x64/0xa4
...
Memory state around the buggy address:
ffffffc0601f6400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffffffc0601f6480: 00 00 00 00 00 00 00 00 00 00 06 fc fc fc fc fc
>ffffffc0601f6500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
^
ffffffc0601f6580: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffffffc0601f6600: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
==================================================================
Signed-off-by: William Wu <william.wu@rock-chips.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Cc: Jerry Zhang <zhangjerry@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8ae584d1951f241efd45499f8774fd7066f22823 upstream.
Axius clock error path returns without disabling clock and suspend clock.
Fix it to disable them before returning error.
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 990758c53eafe5a220a780ed12e7b4d51b3df032 upstream.
'cdev->os_desc_req' has been allocated with 'usb_ep_alloc_request()' so
'usb_ep_free_request()' should be used to free it.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f16443a034c7aa359ddf6f0f9bc40d01ca31faea upstream.
Using the syzkaller kernel fuzzer, Andrey Konovalov generated the
following error in gadgetfs:
> BUG: KASAN: use-after-free in __lock_acquire+0x3069/0x3690
> kernel/locking/lockdep.c:3246
> Read of size 8 at addr ffff88003a2bdaf8 by task kworker/3:1/903
>
> CPU: 3 PID: 903 Comm: kworker/3:1 Not tainted 4.12.0-rc4+ #35
> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
> Workqueue: usb_hub_wq hub_event
> Call Trace:
> __dump_stack lib/dump_stack.c:16 [inline]
> dump_stack+0x292/0x395 lib/dump_stack.c:52
> print_address_description+0x78/0x280 mm/kasan/report.c:252
> kasan_report_error mm/kasan/report.c:351 [inline]
> kasan_report+0x230/0x340 mm/kasan/report.c:408
> __asan_report_load8_noabort+0x19/0x20 mm/kasan/report.c:429
> __lock_acquire+0x3069/0x3690 kernel/locking/lockdep.c:3246
> lock_acquire+0x22d/0x560 kernel/locking/lockdep.c:3855
> __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
> _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151
> spin_lock include/linux/spinlock.h:299 [inline]
> gadgetfs_suspend+0x89/0x130 drivers/usb/gadget/legacy/inode.c:1682
> set_link_state+0x88e/0xae0 drivers/usb/gadget/udc/dummy_hcd.c:455
> dummy_hub_control+0xd7e/0x1fb0 drivers/usb/gadget/udc/dummy_hcd.c:2074
> rh_call_control drivers/usb/core/hcd.c:689 [inline]
> rh_urb_enqueue drivers/usb/core/hcd.c:846 [inline]
> usb_hcd_submit_urb+0x92f/0x20b0 drivers/usb/core/hcd.c:1650
> usb_submit_urb+0x8b2/0x12c0 drivers/usb/core/urb.c:542
> usb_start_wait_urb+0x148/0x5b0 drivers/usb/core/message.c:56
> usb_internal_control_msg drivers/usb/core/message.c:100 [inline]
> usb_control_msg+0x341/0x4d0 drivers/usb/core/message.c:151
> usb_clear_port_feature+0x74/0xa0 drivers/usb/core/hub.c:412
> hub_port_disable+0x123/0x510 drivers/usb/core/hub.c:4177
> hub_port_init+0x1ed/0x2940 drivers/usb/core/hub.c:4648
> hub_port_connect drivers/usb/core/hub.c:4826 [inline]
> hub_port_connect_change drivers/usb/core/hub.c:4999 [inline]
> port_event drivers/usb/core/hub.c:5105 [inline]
> hub_event+0x1ae1/0x3d40 drivers/usb/core/hub.c:5185
> process_one_work+0xc08/0x1bd0 kernel/workqueue.c:2097
> process_scheduled_works kernel/workqueue.c:2157 [inline]
> worker_thread+0xb2b/0x1860 kernel/workqueue.c:2233
> kthread+0x363/0x440 kernel/kthread.c:231
> ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:424
>
> Allocated by task 9958:
> save_stack_trace+0x1b/0x20 arch/x86/kernel/stacktrace.c:59
> save_stack+0x43/0xd0 mm/kasan/kasan.c:513
> set_track mm/kasan/kasan.c:525 [inline]
> kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:617
> kmem_cache_alloc_trace+0x87/0x280 mm/slub.c:2745
> kmalloc include/linux/slab.h:492 [inline]
> kzalloc include/linux/slab.h:665 [inline]
> dev_new drivers/usb/gadget/legacy/inode.c:170 [inline]
> gadgetfs_fill_super+0x24f/0x540 drivers/usb/gadget/legacy/inode.c:1993
> mount_single+0xf6/0x160 fs/super.c:1192
> gadgetfs_mount+0x31/0x40 drivers/usb/gadget/legacy/inode.c:2019
> mount_fs+0x9c/0x2d0 fs/super.c:1223
> vfs_kern_mount.part.25+0xcb/0x490 fs/namespace.c:976
> vfs_kern_mount fs/namespace.c:2509 [inline]
> do_new_mount fs/namespace.c:2512 [inline]
> do_mount+0x41b/0x2d90 fs/namespace.c:2834
> SYSC_mount fs/namespace.c:3050 [inline]
> SyS_mount+0xb0/0x120 fs/namespace.c:3027
> entry_SYSCALL_64_fastpath+0x1f/0xbe
>
> Freed by task 9960:
> save_stack_trace+0x1b/0x20 arch/x86/kernel/stacktrace.c:59
> save_stack+0x43/0xd0 mm/kasan/kasan.c:513
> set_track mm/kasan/kasan.c:525 [inline]
> kasan_slab_free+0x72/0xc0 mm/kasan/kasan.c:590
> slab_free_hook mm/slub.c:1357 [inline]
> slab_free_freelist_hook mm/slub.c:1379 [inline]
> slab_free mm/slub.c:2961 [inline]
> kfree+0xed/0x2b0 mm/slub.c:3882
> put_dev+0x124/0x160 drivers/usb/gadget/legacy/inode.c:163
> gadgetfs_kill_sb+0x33/0x60 drivers/usb/gadget/legacy/inode.c:2027
> deactivate_locked_super+0x8d/0xd0 fs/super.c:309
> deactivate_super+0x21e/0x310 fs/super.c:340
> cleanup_mnt+0xb7/0x150 fs/namespace.c:1112
> __cleanup_mnt+0x1b/0x20 fs/namespace.c:1119
> task_work_run+0x1a0/0x280 kernel/task_work.c:116
> exit_task_work include/linux/task_work.h:21 [inline]
> do_exit+0x18a8/0x2820 kernel/exit.c:878
> do_group_exit+0x14e/0x420 kernel/exit.c:982
> get_signal+0x784/0x1780 kernel/signal.c:2318
> do_signal+0xd7/0x2130 arch/x86/kernel/signal.c:808
> exit_to_usermode_loop+0x1ac/0x240 arch/x86/entry/common.c:157
> prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
> syscall_return_slowpath+0x3ba/0x410 arch/x86/entry/common.c:263
> entry_SYSCALL_64_fastpath+0xbc/0xbe
>
> The buggy address belongs to the object at ffff88003a2bdae0
> which belongs to the cache kmalloc-1024 of size 1024
> The buggy address is located 24 bytes inside of
> 1024-byte region [ffff88003a2bdae0, ffff88003a2bdee0)
> The buggy address belongs to the page:
> page:ffffea0000e8ae00 count:1 mapcount:0 mapping: (null)
> index:0x0 compound_mapcount: 0
> flags: 0x100000000008100(slab|head)
> raw: 0100000000008100 0000000000000000 0000000000000000 0000000100170017
> raw: ffffea0000ed3020 ffffea0000f5f820 ffff88003e80efc0 0000000000000000
> page dumped because: kasan: bad access detected
>
> Memory state around the buggy address:
> ffff88003a2bd980: fb fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> ffff88003a2bda00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
> >ffff88003a2bda80: fc fc fc fc fc fc fc fc fc fc fc fc fb fb fb fb
> ^
> ffff88003a2bdb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> ffff88003a2bdb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> ==================================================================
What this means is that the gadgetfs_suspend() routine was trying to
access dev->lock after it had been deallocated. The root cause is a
race in the dummy_hcd driver; the dummy_udc_stop() routine can race
with the rest of the driver because it contains no locking. And even
when proper locking is added, it can still race with the
set_link_state() function because that function incorrectly drops the
private spinlock before invoking any gadget driver callbacks.
The result of this race, as seen above, is that set_link_state() can
invoke a callback in gadgetfs even after gadgetfs has been unbound
from dummy_hcd's UDC and its private data structures have been
deallocated.
include/linux/usb/gadget.h documents that the ->reset, ->disconnect,
->suspend, and ->resume callbacks may be invoked in interrupt context.
In general this is necessary, to prevent races with gadget driver
removal. This patch fixes dummy_hcd to retain the spinlock across
these calls, and it adds a spinlock acquisition to dummy_udc_stop() to
prevent the race.
The net2280 driver makes the same mistake of dropping the private
spinlock for its ->disconnect and ->reset callback invocations. The
patch fixes it too.
Lastly, since gadgetfs_suspend() may be invoked in interrupt context,
it cannot assume that interrupts are enabled when it runs. It must
use spin_lock_irqsave() instead of spin_lock_irq(). The patch fixes
that bug as well.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Andrey Konovalov <andreyknvl@google.com>
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit f50b878fed33e360d01dcdc31a8eeb1815d033d5 upstream.
A NULL-pointer dereference bug in gadgetfs was uncovered by syzkaller:
> kasan: GPF could be caused by NULL-ptr deref or user memory access
> general protection fault: 0000 [#1] SMP KASAN
> Dumping ftrace buffer:
> (ftrace buffer empty)
> Modules linked in:
> CPU: 2 PID: 4820 Comm: syz-executor0 Not tainted 4.12.0-rc4+ #5
> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
> task: ffff880039542dc0 task.stack: ffff88003bdd0000
> RIP: 0010:__list_del_entry_valid+0x7e/0x170 lib/list_debug.c:51
> RSP: 0018:ffff88003bdd6e50 EFLAGS: 00010246
> RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000010000
> RDX: 0000000000000000 RSI: ffffffff86504948 RDI: ffffffff86504950
> RBP: ffff88003bdd6e68 R08: ffff880039542dc0 R09: ffffffff8778ce00
> R10: ffff88003bdd6e68 R11: dffffc0000000000 R12: 0000000000000000
> R13: dffffc0000000000 R14: 1ffff100077badd2 R15: ffffffff864d2e40
> FS: 0000000000000000(0000) GS:ffff88006dc00000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 000000002014aff9 CR3: 0000000006022000 CR4: 00000000000006e0
> Call Trace:
> __list_del_entry include/linux/list.h:116 [inline]
> list_del include/linux/list.h:124 [inline]
> usb_gadget_unregister_driver+0x166/0x4c0 drivers/usb/gadget/udc/core.c:1387
> dev_release+0x80/0x160 drivers/usb/gadget/legacy/inode.c:1187
> __fput+0x332/0x7f0 fs/file_table.c:209
> ____fput+0x15/0x20 fs/file_table.c:245
> task_work_run+0x19b/0x270 kernel/task_work.c:116
> exit_task_work include/linux/task_work.h:21 [inline]
> do_exit+0x18a3/0x2820 kernel/exit.c:878
> do_group_exit+0x149/0x420 kernel/exit.c:982
> get_signal+0x77f/0x1780 kernel/signal.c:2318
> do_signal+0xd2/0x2130 arch/x86/kernel/signal.c:808
> exit_to_usermode_loop+0x1a7/0x240 arch/x86/entry/common.c:157
> prepare_exit_to_usermode arch/x86/entry/common.c:194 [inline]
> syscall_return_slowpath+0x3ba/0x410 arch/x86/entry/common.c:263
> entry_SYSCALL_64_fastpath+0xbc/0xbe
> RIP: 0033:0x4461f9
> RSP: 002b:00007fdac2b1ecf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
> RAX: fffffffffffffe00 RBX: 00000000007080c8 RCX: 00000000004461f9
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000007080c8
> RBP: 00000000007080a8 R08: 0000000000000000 R09: 0000000000000000
> R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
> R13: 0000000000000000 R14: 00007fdac2b1f9c0 R15: 00007fdac2b1f700
> Code: 00 00 00 00 ad de 49 39 c4 74 6a 48 b8 00 02 00 00 00 00 ad de
> 48 89 da 48 39 c3 74 74 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df <80>
> 3c 02 00 0f 85 92 00 00 00 48 8b 13 48 39 f2 75 66 49 8d 7c
> RIP: __list_del_entry_valid+0x7e/0x170 lib/list_debug.c:51 RSP: ffff88003bdd6e50
> ---[ end trace 30e94b1eec4831c8 ]---
> Kernel panic - not syncing: Fatal exception
The bug was caused by dev_release() failing to turn off its
gadget_registered flag after unregistering the gadget driver. As a
result, when a later user closed the device file before writing a
valid set of descriptors, dev_release() thought the gadget had been
registered and tried to unregister it, even though it had not been.
This led to the NULL pointer dereference.
The fix is simple: turn off the flag when the gadget is unregistered.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit d2f48f05cd2a2a0a708fbfa45f1a00a87660d937 upstream.
When plugging an USB webcam I see the following message:
[106385.615559] xhci_hcd 0000:04:00.0: WARN Successful completion on short TX: needs XHCI_TRUST_TX_LENGTH quirk?
[106390.583860] handle_tx_event: 913 callbacks suppressed
With this patch applied, I get no more printing of this message.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit b72eb8435b25be3a1880264cf32ac91e626ba5ba upstream.
xHCI host controllers can have both USB 3.1 and 3.0 extended speed
protocol lists. If the USB3.1 speed is parsed first and 3.0 second then
the minor revision supported will be overwritten by the 3.0 speeds and
the USB3 roothub will only show support for USB 3.0 speeds.
This was the case with a xhci controller with the supported protocol
capability listed below.
In xhci-mem.c, the USB 3.1 speed is parsed first, the min_rev of usb3_rhub
is set as 0x10. And then USB 3.0 is parsed. However, the min_rev of
usb3_rhub will be changed to 0x00. If USB 3.1 device is connected behind
this host controller, the speed of USB 3.1 device just reports 5G speed
using lsusb.
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 01 08 00 00 00 00 00 40 00 00 00 00 00 00 00 00
10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20 02 08 10 03 55 53 42 20 01 02 00 00 00 00 00 00 //USB 3.1
30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40 02 08 00 03 55 53 42 20 03 06 00 00 00 00 00 00 //USB 3.0
50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60 02 08 00 02 55 53 42 20 09 0E 19 00 00 00 00 00 //USB 2.0
70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
This patch fixes the issue by only owerwriting the minor revision if
it is higher than the existing one.
[reword commit message -Mathias]
Signed-off-by: YD Tseng <yd_tseng@asmedia.com.tw>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit dd14a3e9b92ac6f0918054f9e3477438760a4fa6 upstream.
The timeout for BULK packets was 300ms which is a long time if other
endpoints or devices are waiting for their turn. Changing it to 50ms
greatly increased the overall performance for multi-endpoint devices.
Fixes: 5d3043586db4 ("usb: r8a66597-hcd: host controller driver for R8A6659")
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 1f873d857b6c2fefb4dada952674aa01bcfb92bd upstream.
If multiple endpoints on a single device have pending IN URBs and one
endpoint times out due to NAKs (perfectly legal), select a different
endpoint URB to try.
The existing code only checked to see another device address has pending
URBs and ignores other IN endpoints on the current device address. This
leads to endpoints never getting serviced if one endpoint is using NAK as
a flow control method.
Fixes: 5d3043586db4 ("usb: r8a66597-hcd: host controller driver for R8A6659")
Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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