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In the case spi_master_initialize_queue() fails, current code calls
device_unregister() before return error from spi_register_master().
However, all the drivers call spi_master_put() in the error path if
spi_register_master() fails. Thus we should call device_del() rather than
device_unregister() before return error from spi_register_master().
This also makes all the spi_register_master() error handling consistent,
because all other error paths of spi_register_master() expect drivers to
call spi_master_put() if spi_register_master() fails.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Obviously the of_device_id table name is wrong.
Fix below build error:
CC [M] drivers/spi/spi-efm32.o
drivers/spi/spi-efm32.c:499:1: error: '__mod_of_device_table' aliased to undefined symbol 'efm32_uart_dt_ids'
make[2]: *** [drivers/spi/spi-efm32.o] Error 1
make[1]: *** [drivers/spi] Error 2
make: *** [drivers] Error 2
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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The Altera SPI hardware can be configured to support data width from 1 to 32
since Quartus II 8.1. To avoid truncation by integer division, use DIV_ROUND_UP
to calculate hw->bytes_per_word.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Mark Brown <broonie@linaro.org>
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The code in nuc900_slave_select() supports handling SPI_CS_HIGH.
Thus set SPI_CS_HIGH bit in master->mode_bits to make it work.
Otherwise, spi_setup() will return unsupported mode bits error message if
SPI_CS_HIGH is set in the mode field of struct spi_device.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
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Convert the composition of devm_request_mem_region and devm_ioremap to a
single call to devm_ioremap_resource. The associated call to
platform_get_resource is also simplified and moved next to the new call to
devm_ioremap_resource.
This was done using a combination of the semantic patches
devm_ioremap_resource.cocci and devm_request_and_ioremap.cocci, found in
the scripts/coccinelle/api directory.
This patch also removes the label exit_busy, to use the error code returned
by the failing operation, rather than always -EBUSY.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
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This patch simplifies the code and makes it better in readability.
Now the logic in the while loop is simply
"write to ALTERA_SPI_TXDATA then read from ALTERA_SPI_TXDATA".
There is a slightly logic change because now we avoid a read-write cycle when
hw->len is 0. Since the code in bitbang library will call bitbang->txrx_bufs()
only when t->len is not 0, this is not a problem.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Mark Brown <broonie@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging fixes from Greg KH:
"Here are two tiny staging tree fixes (well, one is for an iio driver,
but those updates come through the staging tree due to dependancies)
One fixes a problem with an IIO driver, and the other fixes a bug in
the comedi driver core"
* tag 'staging-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: comedi: bug-fix NULL pointer dereference on failed attach
iio: adjd_s311: Fix non-scan mode data read
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are two USB fixes for 3.11-rc7
One fixes a reported regression in the OHCI driver, and the other
fixes a reported build breakage in the USB phy drivers"
* tag 'usb-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: phy: fix build breakage
USB: OHCI: add missing PCI PM callbacks to ohci-pci.c
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Pull ARM fixes from Russell King:
"This round of fixes is smaller than previous: a couple more updates
for the security fixes, and a one-liner kexec fix"
* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7816/1: CONFIG_KUSER_HELPERS: fix help text
ARM: 7815/1: kexec: offline non panic CPUs on Kdump panic
ARM: 7819/1: fiq: Cast the first argument of flush_icache_range()
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
"Assorted fixes from the last week or so"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
VFS: collect_mounts() should return an ERR_PTR
bfs: iget_locked() doesn't return an ERR_PTR
efs: iget_locked() doesn't return an ERR_PTR()
proc: kill the extra proc_readfd_common()->dir_emit_dots()
cope with potentially long ->d_dname() output for shmem/hugetlb
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"I really hoped that it wouldn't be necessary to change anything in
ACPI at this point, but it turns out that we need to revert one more
ACPI video commit causing trouble.
This reverts a change in the ACPI video driver that caused the ACPI
backlight initialization to be carried out even if acpi_backlight=vendor
is passed in the kernel command line which turns out to break things
at least on one system"
* tag 'acpi-3.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Revert "ACPI / video: Always call acpi_video_init_brightness() on init"
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of small bug fixes for lpfc and zfcp and a fix for a
fairly nasty bug in sg where a process which cancels I/O completes in
a kernel thread which would then try to write back to the now gone
userspace and end up writing to a random kernel address instead"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] zfcp: remove access control tables interface (keep sysfs files)
[SCSI] zfcp: fix schedule-inside-lock in scsi_device list loops
[SCSI] zfcp: fix lock imbalance by reworking request queue locking
[SCSI] sg: Fix user memory corruption when SG_IO is interrupted by a signal
[SCSI] lpfc: Don't force CONFIG_GENERIC_CSUM on
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For a search buffer, 2 byte aligned, strchr() was returning pointer
outside of buffer (buf - 1)
------------->8----------------
// Input buffer (default 4 byte aigned)
char *buffer = "1AA_";
// actual search start (to mimick 2 byte alignment)
char *current_line = &(buffer[2]);
// Character to search for
char c = 'A';
char *c_pos = strchr(current_line, c);
printf("%s\n", c_pos) --> 'AA_' as oppose to 'A_'
------------->8----------------
Reported-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
Debugged-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
Cc: <stable@vger.kernel.org> # [3.9 and 3.10]
Cc: Noam Camus <noamc@ezchip.com>
Signed-off-by: Joern Rennecke <joern.rennecke@embecosm.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This should actually be returning an ERR_PTR on error instead of NULL.
That was how it was designed and all the callers expect it.
[AV: actually, that's what "VFS: Make clone_mnt()/copy_tree()/collect_mounts()
return errors" missed - originally collect_mounts() was expected to return
NULL on failure]
Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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iget_locked() returns a NULL on error, it doesn't return an ERR_PTR.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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The iget_locked() function returns NULL on error and never an ERR_PTR.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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proc_readfd_common() does dir_emit_dots() twice in a row,
we need to do this only once.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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dynamic_dname() is both too much and too little for those - the
output may be well in excess of 64 bytes dynamic_dname() assumes
to be enough (thanks to ashmem feeding really long names to
shmem_file_setup()) and vsnprintf() is an overkill for those
guys.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata fixes from Tejun Heo:
"This contains three commits all of which are updates for specific
devices which aren't too widespread. Pretty limited scope and nothing
too interesting or dangerous"
* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
sata_fsl: save irqs while coalescing
libata: apply behavioral quirks to sil3826 PMP
sata, highbank: fix ordering of SGPIO signals
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fix from Tejun Heo:
"A late fix for cgroup.
This fixes a behavior regression visible to userland which was created
by a commit merged during -rc1. While the behavior change isn't too
likely to be noticeable, the fix is relatively low risk and we'll need
to backport it through -stable anyway if the bug gets released"
* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cpuset: fix a regression in validating config change
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Pull drm fixes from Dave Airlie:
"Ben was on holidays for a week so a few nouveau regression fixes
backed up, but they all seem necessary.
Otherwise one i915 and one gma500 fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
gma500: Fix SDVO turning off randomly
drm/nv04/disp: fix framebuffer pin refcounting
drm/nouveau/mc: fix race condition between constructor and request_irq()
drm/nouveau: fix reclocking on nv40
drm/nouveau/ltcg: fix allocating memory as free
drm/nouveau/ltcg: fix ltcg memory initialization after suspend
drm/nouveau/fb: fix null derefs in nv49 and nv4e init
drm/i915: Invalidate TLBs for the rings after a reset
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Commit 94ae9843 (usb: phy: rename all phy drivers to phy-$name-usb.c)
renamed drivers/usb/phy/otg_fsm.h to drivers/usb/phy/phy-fsm-usb.h
but changed drivers/usb/phy/phy-fsm-usb.c to include not existing
"phy-otg-fsm.h" instead of new "phy-fsm-usb.h". This breaks building:
...
drivers/usb/phy/phy-fsm-usb.c:32:25: fatal error: phy-otg-fsm.h: No such file or directory
compilation terminated.
make[3]: *** [drivers/usb/phy/phy-fsm-usb.o] Error 1
This commit also missed to modify drivers/usb/phy/phy-fsl-usb.h
to include new "phy-fsm-usb.h" instead of "otg_fsm.h" resulting
in another build breakage:
...
In file included from drivers/usb/phy/phy-fsl-usb.c:46:0:
drivers/usb/phy/phy-fsl-usb.h:18:21: fatal error: otg_fsm.h: No such file or directory
compilation terminated.
make[3]: *** [drivers/usb/phy/phy-fsl-usb.o] Error 1
Fix both issues.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: stable <stable@vger.kernel.org> # 3.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit c1117afb8589 (USB: OHCI: make ohci-pci a separate driver)
neglected to preserve the entries for the pci_suspend and pci_resume
driver callbacks. As a result, OHCI controllers don't work properly
during suspend and after hibernation.
This patch adds the missing callbacks to the driver.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: Steve Cotton <steve@s.cotton.clara.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit dcd7b8bd63cb81c5b973bf86510ca3c80bbbd162 ("staging: comedi: put
module _after_ detach" by myself) reversed a couple of calls in
`comedi_device_attach()` when recovering from an error returned by the
low-level driver's 'attach' handler. Unfortunately, that introduced a
NULL pointer dereference bug as `dev->driver` is NULL after the call to
`comedi_device_detach()`. We still have a pointer to the low-level
comedi driver structure in the `driv` variable, so use that instead.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: <stable@vger.kernel.org> # 3.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge networking fixes from David Miller:
1) Revert Johannes Berg's genetlink locking fix, because it causes
regressions.
Johannes and Pravin Shelar are working on fixing things properly.
2) Do not drop ipv6 ICMP messages without a redirected header option,
they are legal. From Duan Jiong.
3) Missing error return propagation in probing of via-ircc driver.
From Alexey Khoroshilov.
4) Do not clear out broadcast/multicast/unicast/WOL bits in r8169 when
initializing, from Peter Wu.
5) realtek phy driver programs wrong interrupt status bit, from
Giuseppe CAVALLARO.
6) Fix statistics regression in AF_PACKET code, from Willem de Bruijn.
7) Bridge code uses wrong bitmap length, from Toshiaki Makita.
8) SFC driver uses wrong indexes to look up MAC filters, from Ben
Hutchings.
9) Don't pass stack buffers into usb control operations in hso driver,
from Daniel Gimpelevich.
10) Multiple ipv6 fragmentation headers in one packet is illegal and
such packets should be dropped, from Hannes Frederic Sowa.
11) When TCP sockets are "repaired" as part of checkpoint/restart, the
timestamp field of SKBs need to be refreshed otherwise RTOs can be
wildly off. From Andrey Vagin.
12) Fix memcpy args (uses 'address of pointer' instead of 'pointer') in
hostp driver. From Dan Carpenter.
13) nl80211hdr_put() doesn't return an ERR_PTR, but some code believes
it does. From Dan Carpenter.
14) Fix regression in wireless SME disconnects, from Johannes Berg.
15) Don't use a stack buffer for DMA in zd1201 USB wireless driver, from
Jussi Kivilinna.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (33 commits)
ipv4: expose IPV4_DEVCONF
ipv6: handle Redirect ICMP Message with no Redirected Header option
be2net: fix disabling TX in be_close()
Revert "genetlink: fix family dump race"
hso: Fix stack corruption on some architectures
hso: Earlier catch of error condition
sfc: Fix lookup of default RX MAC filters when steered using ethtool
bridge: Use the correct bit length for bitmap functions in the VLAN code
packet: restore packet statistics tp_packets to include drops
net: phy: rtl8211: fix interrupt on status link change
r8169: remember WOL preferences on driver load
via-ircc: don't return zero if via_ircc_open() failed
macvtap: Ignore tap features when VNET_HDR is off
macvtap: Correctly set tap features when IFF_VNET_HDR is disabled.
macvtap: simplify usage of tap_features
tcp: set timestamps for restored skb-s
bnx2x: set VF DMAE when first function has 0 supported VFs
bnx2x: Protect against VFs' ndos when SR-IOV is disabled
bnx2x: prevent VF benign attentions
bnx2x: Consider DCBX remote error
...
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Merge fixes from Andrew Morton:
"A few fixes. One is a licensing change and I don't do licensing, so
please eyeball that one"
Licensing eye-balled.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
lib/lz4: correct the LZ4 license
memcg: get rid of swapaccount leftovers
nilfs2: fix issue with counting number of bio requests for BIO_EOPNOTSUPP error detection
nilfs2: remove double bio_put() in nilfs_end_bio_write() for BIO_EOPNOTSUPP error
drivers/platform/olpc/olpc-ec.c: initialise earlier
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