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2012-02-09igb: fix vf lookupGreg Rose
Recent addition of code to find already allocated VFs failed to take account that systems with 2 or more multi-port SR-IOV capable controllers might have already enabled VFs. Make sure that the VFs the function is finding are actually subordinate to the particular instance of the adapter that is looking for them and not subordinate to some device that has previously enabled SR-IOV. This is applicable to 3.2+ kernels. CC: stable@vger.kernel.org Reported-by: David Ahern <daahern@cisco.com> Signed-off-by: Greg Rose <gregory.v.rose@intel.com> Tested-by: Robert E Garrett <robertX.e.garrett@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-02-09e1000: add dropped DMA receive enable back in for WoLDean Nelson
Commit d5bc77a223b0e9b9dfb002048d2b34a79e7d0b48 broke Wake-on-LAN by inadvertently dropping the enabling of DMA receives. Restore the enabling of DMA receives for WoL. This is applicable to 3.1+ stable trees. CC: stable@vger.stable.org Reported-by: Tobias Klausmann <klausman@schwarzvogel.de> Signed-off-by: Dean Nelson <dnelson@redhat.com> Tested-by: Tobias Klausmann <klausman@schwarzvogel.de> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2012-02-09hwmon: (f75375s) Fix bit shifting in f75375_write16Nikolaus Schulz
In order to extract the high byte of the 16-bit word, shift the word to the right, not to the left. Signed-off-by: Nikolaus Schulz <mail@microschulz.de> Cc: stable@kernel.org # 2.6.32+ Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-02-09hwmon: (f75375s) Fix reading of wrong register when initializing the F75387Nikolaus Schulz
Unlike the other chips supported by this driver, the F75387 stores the pwm_mode in register F75375_REG_FAN_TIMER, not F75375_REG_CONFIG1. Signed-off-by: Nikolaus Schulz <mail@microschulz.de> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-02-09hwmon: (f75375s) Fix automatic pwm mode setting for F75373 & F75375Nikolaus Schulz
In order to enable temperature mode aka automatic mode for the F75373 and F75375 chips, the two FANx_MODE bits in the fan configuration register need be set to 01, not 10. Signed-off-by: Nikolaus Schulz <mail@microschulz.de> Cc: stable@kernel.org # 2.6.32+ Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
2012-02-09hwmon: (w83627ehf) Remove duplicate codeGuenter Roeck
Commit ec3e5a16446fef1891611fe3bdfa5954d1ddf5e4 slipped in some duplicate code. Remove it. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Acked-by: Jean Delvare <khali@linux-fr.org>
2012-02-09Merge branch 'iommu/fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu One patch fixes an bug in the ARM/MSM IOMMU code which returned sucess in the unmap function even when an error occured and the other patch adds a workaround into the AMD IOMMU driver to better handle broken IVRS ACPI tables (this patch fixes the case when a device is not listed in the table but actually translated by the iommu). * 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/msm: Fix error handling in msm_iommu_unmap() iommu/amd: Work around broken IVRS tables
2012-02-09Merge branch '3.3-rc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending This series contains pending target bug-fixes and cleanups for v3.3-rc3 that have been addressed the past weeks in lio-core.git. Some of the highlights include: - Fix handling for control CDBs with data greater than PAGE_SIZE (andy) - Use IP_FREEBIND for iscsi-target to address network portal creation issues with systemd (dax) - Allow PERSISTENT RESERVE IN for non-reservation holder (marco) - Fix iblock se_dev_attrib.unmap_granularity (marco) - Fix unsupported WRITE_SAME sense payload handling (martin) - Add workaround for zero-length control CDB handling (nab) - Fix discovery with INADDR_ANY and IN6ADDR_ANY_INIT (nab) - Fix target_submit_cmd() exception handling (nab) - Return correct ASC for unimplemented VPD pages (roland) - Don't zero pages used for data buffers (roland) - Fix return code of core_tpg_.*_lun (sebastian) * '3.3-rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (26 commits) target: Fix unsupported WRITE_SAME sense payload iscsi: use IP_FREEBIND socket option iblock: fix handling of large requests target: handle empty string writes in sysfs iscsi_target: in_aton needs linux/inet.h target: Fix iblock se_dev_attrib.unmap_granularity target: Fix target_submit_cmd() exception handling target: Change target_submit_cmd() to return void target: accept REQUEST_SENSE with 18bytes target: Fail INQUIRY commands with EVPD==0 but PAGE CODE!=0 target: Return correct ASC for unimplemented VPD pages iscsi-target: Fix discovery with INADDR_ANY and IN6ADDR_ANY_INIT target: Allow control CDBs with data > 1 page iscsi-target: Fix up a few assignments iscsi-target: make one-bit bitfields unsigned iscsi-target: Fix double list_add with iscsit_alloc_buffs reject iscsi-target: Fix reject release handling in iscsit_free_cmd() target: fix return code of core_tpg_.*_lun target: use save/restore lock primitive in core_dec_lacl_count() target: avoid multiple outputs in scsi_dump_inquiry() ...
2012-02-09Merge tag 'md-3.3-fixes' of git://neil.brown.name/mdLinus Torvalds
Some simple md-related fixes. 1/ two small fixes to ensure we handle an interrupted resync properly. 2/ avoid loading the bitmap multiple times in dm-raid * tag 'md-3.3-fixes' of git://neil.brown.name/md: md: two small fixes to handling interrupt resync. Prevent DM RAID from loading bitmap twice.
2012-02-09Merge tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
SPI bug fixes for v3.3-rc2 Minor SPI device driver changes. A rename of the pch_spi_pcidev symbol that merely eliminates a modpost warning, and a Kconfig change to allow the Samsung spi driver to build on EXYNOS. * tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6: spi-topcliff-pch: rename pch_spi_pcidev to pch_spi_pcidev_driver spi: Add spi-s3c64xx driver dependency on ARCH_EXYNOS4
2012-02-09pcmcia: fix socket refcount decrementing on each resumeRussell King
This fixes a memory-corrupting bug: not only does it cause the warning, but as a result of dropping the refcount to zero, it causes the pcmcia_socket0 device structure to be freed while it still has references, causing slab caches corruption. A fatal oops quickly follows this warning - often even just a 'dmesg' following the warning causes the kernel to oops. While testing suspend/resume on an ARM device with PCMCIA support, and a CF card inserted, I found that after five suspend and resumes, the kernel would complain, and shortly die after with slab corruption. WARNING: at include/linux/kref.h:41 kobject_get+0x28/0x50() As the message doesn't give a clue about which kobject, and the built-in debugging in drivers/base/power/main.c happens too late, this was added right before each get_device(): printk("%s: %p [%s] %u\n", __func__, dev, kobject_name(&dev->kobj), atomic_read(&dev->kobj.kref.refcount)); and on the 3rd s2ram cycle, the following behaviour observed: On the 3rd suspend/resume cycle: dpm_prepare: c1a0d998 [pcmcia_socket0] 3 dpm_suspend: c1a0d998 [pcmcia_socket0] 3 dpm_suspend_noirq: c1a0d998 [pcmcia_socket0] 3 dpm_resume_noirq: c1a0d998 [pcmcia_socket0] 3 dpm_resume: c1a0d998 [pcmcia_socket0] 3 dpm_complete: c1a0d998 [pcmcia_socket0] 2 4th: dpm_prepare: c1a0d998 [pcmcia_socket0] 2 dpm_suspend: c1a0d998 [pcmcia_socket0] 2 dpm_suspend_noirq: c1a0d998 [pcmcia_socket0] 2 dpm_resume_noirq: c1a0d998 [pcmcia_socket0] 2 dpm_resume: c1a0d998 [pcmcia_socket0] 2 dpm_complete: c1a0d998 [pcmcia_socket0] 1 5th: dpm_prepare: c1a0d998 [pcmcia_socket0] 1 dpm_suspend: c1a0d998 [pcmcia_socket0] 1 dpm_suspend_noirq: c1a0d998 [pcmcia_socket0] 1 dpm_resume_noirq: c1a0d998 [pcmcia_socket0] 1 dpm_resume: c1a0d998 [pcmcia_socket0] 1 dpm_complete: c1a0d998 [pcmcia_socket0] 0 ------------[ cut here ]------------ WARNING: at include/linux/kref.h:41 kobject_get+0x28/0x50() Modules linked in: ucb1x00_core Backtrace: [<c0212090>] (dump_backtrace+0x0/0x110) from [<c04799dc>] (dump_stack+0x18/0x1c) [<c04799c4>] (dump_stack+0x0/0x1c) from [<c021cba0>] (warn_slowpath_common+0x50/0x68) [<c021cb50>] (warn_slowpath_common+0x0/0x68) from [<c021cbdc>] (warn_slowpath_null+0x24/0x28) [<c021cbb8>] (warn_slowpath_null+0x0/0x28) from [<c0335374>] (kobject_get+0x28/0x50) [<c033534c>] (kobject_get+0x0/0x50) from [<c03804f4>] (get_device+0x1c/0x24) [<c0388c90>] (dpm_complete+0x0/0x1a0) from [<c0389cc0>] (dpm_resume_end+0x1c/0x20) ... Looking at commit 7b24e7988263 ("pcmcia: split up central event handler"), the following change was made to cs.c: return 0; } #endif - - send_event(skt, CS_EVENT_PM_RESUME, CS_EVENT_PRI_LOW); + if (!(skt->state & SOCKET_CARDBUS) && (skt->callback)) + skt->callback->early_resume(skt); return 0; } And the corresponding change in ds.c is from: -static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) -{ - struct pcmcia_socket *s = pcmcia_get_socket(skt); ... - switch (event) { ... - case CS_EVENT_PM_RESUME: - if (verify_cis_cache(skt) != 0) { - dev_dbg(&skt->dev, "cis mismatch - different card\n"); - /* first, remove the card */ - ds_event(skt, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH); - mutex_lock(&s->ops_mutex); - destroy_cis_cache(skt); - kfree(skt->fake_cis); - skt->fake_cis = NULL; - s->functions = 0; - mutex_unlock(&s->ops_mutex); - /* now, add the new card */ - ds_event(skt, CS_EVENT_CARD_INSERTION, - CS_EVENT_PRI_LOW); - } - break; ... - } - pcmcia_put_socket(s); - return 0; -} /* ds_event */ to: +static int pcmcia_bus_early_resume(struct pcmcia_socket *skt) +{ + if (!verify_cis_cache(skt)) { + pcmcia_put_socket(skt); + return 0; + } + dev_dbg(&skt->dev, "cis mismatch - different card\n"); + /* first, remove the card */ + pcmcia_bus_remove(skt); + mutex_lock(&skt->ops_mutex); + destroy_cis_cache(skt); + kfree(skt->fake_cis); + skt->fake_cis = NULL; + skt->functions = 0; + mutex_unlock(&skt->ops_mutex); + /* now, add the new card */ + pcmcia_bus_add(skt); + return 0; +} As can be seen, the original function called pcmcia_get_socket() and pcmcia_put_socket() around the guts, whereas the replacement code calls pcmcia_put_socket() only in one path. This creates an imbalance in the refcounting. Testing with pcmcia_put_socket() put removed shows that the bug is gone: dpm_suspend: c1a10998 [pcmcia_socket0] 5 dpm_suspend_noirq: c1a10998 [pcmcia_socket0] 5 dpm_resume_noirq: c1a10998 [pcmcia_socket0] 5 dpm_resume: c1a10998 [pcmcia_socket0] 5 dpm_complete: c1a10998 [pcmcia_socket0] 5 Tested-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-09drivers/leds/leds-lm3530.c: fix setting pltfm->als_vmaxAxel Lin
In current code, pltfm->als_vmin is set to LM3530_ALS_WINDOW_mV and pltfm->als_vmax is 0. This does not make sense. I think what we want here is setting pltfm->als_vmax to LM3530_ALS_WINDOW_mV. Both als_vmin and als_vmax local variables will be set to pltfm->als_vmin and pltfm->als_vmax by a few lines latter. Thus also remove a redundant assignment for als_vmin and als_vmax in this patch. Signed-off-by: Axel Lin <axel.lin@gmail.com> Cc: Shreshtha Kumar Sahu <shreshthakumar.sahu@stericsson.com> Acked-by: Milo(Woogyom) Kim <milo.kim@ti.com> Tested-by: Milo(Woogyom) Kim <milo.kim@ti.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-02-09netxen_nic: signedness bug in netxen_md_entry_err_chk()Dan Carpenter
"esize" should be signed because it can be negative here. For example, when we call it in netxen_parse_md_template(), it could be -1 from the return value of netxen_md_L2Cache(). Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-09staging: pohmelfs: remove drivers/staging/pohmelfsEvgeniy Polyakov
New pohmelfs is coming, and it is time to remove deadly old design https://lkml.org/lkml/2012/2/8/293 Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-09Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2012-02-08qeth: add wake_up on write channelUrsula Braun
To send commands on the write channel 8 buffers exist. If all 8 buffers are used, a wait is triggered on the write channel. When such buffer are freed, a wake_up is needed. This patch adds the missing wake_up in qeth_release_buffer(). This fix is especially important when running Communications Controller for Linux on System z. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-08qeth: add query OSA address table supportFrank Blaschka
Add qeth device private ioctl to query the OSA address table. This helps debugging hw related problems. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-08netdev: ethernet dev_alloc_skb to netdev_alloc_skbPradeep A. Dalvi
Replaced deprecating dev_alloc_skb with netdev_alloc_skb in drivers/net/ethernet - Removed extra skb->dev = dev after netdev_alloc_skb Signed-off-by: Pradeep A Dalvi <netdev@pradeepdalvi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-08netdev: ethernet dev_alloc_skb to netdev_alloc_skbPradeep A. Dalvi
Replaced deprecating dev_alloc_skb with netdev_alloc_skb in drivers/net/ethernet - Removed extra skb->dev = dev after netdev_alloc_skb Signed-off-by: Pradeep A Dalvi <netdev@pradeepdalvi.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-08IPoIB: Stop lying about hard_header_len and use skb->cb to stash LL addressesRoland Dreier
Commit a0417fa3a18a ("net: Make qdisc_skb_cb upper size bound explicit.") made it possible for a netdev driver to use skb->cb between its header_ops.create method and its .ndo_start_xmit method. Use this in ipoib_hard_header() to stash away the LL address (GID + QPN), instead of the "ipoib_pseudoheader" hack. This allows IPoIB to stop lying about its hard_header_len, which will let us fix the L2 check for GRO. Signed-off-by: Roland Dreier <roland@purestorage.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-08driver-core: cpu: fix kobject warning when hotplugging a cpuGreg Kroah-Hartman
Due to the sysdev conversion to struct device, the cpu objects get reused when adding a cpu after offlining it, which causes a big warning that the kobject portion is not properly initialized. So clear out the object before we register it again, so all is quiet. Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08ACPI: remove duplicated lines of merging problems with acpi_processor_addYinghai Lu
Those lines have two copies. Not sure how it could happen, looks like git problem. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Renninger <trenn@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08m32r: relocate drivers back out of 8250 dirPaul Gortmaker
Commit 9bef3d4197379a995fa80f81950bbbf8d32e9e8b "serial: group all the 8250 related code together" inadvertently swept up the m32r driver in the move, because it had comments mentioning 8250 registers within it. However these are only there by nature of the driver being based off the 8250 source code -- the hardware itself does not actually have any relation to the original 8250 style UARTs. Reported-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android/ram_console: Don't build on arches w/o ioremapAnton Vorontsov
This patch fixes UML build: CC drivers/staging/android/ram_console.o drivers/staging/android/ram_console.c: In function 'ram_console_driver_probe': drivers/staging/android/ram_console.c:358:2: error: implicit declaration of function 'ioremap' [-Werror=implicit-function-declaration] cc1: some warnings being treated as errors make[3]: *** [drivers/staging/android/ram_console.o] Error 1 Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: r8712u: Use asynchronous firmware loadingLarry Finger
In https://bugs.archlinux.org/task/27996, failure of driver r8712u is reported, with a timeout during module loading due to synchronous loading of the firmware. The code now uses request_firmware_nowait(). Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: usbip: fix to prevent potentially using uninitialized spinlockBart Westgeest
The stub_probe function can be called as soon as the stub_driver is registered. This can lead to the busid_table_lock being used before it is initialized. Moved calling the init_busid_table function (which initalizes this spinlock) to be called earlier in the init function to prevent this from happening. Signed-off-by: Bart Westgeest <bart@elbrys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: r8712u: Fix problem when CONFIG_R8712_AP is setLarry Finger
When this driver was upgraded to the vendor 20100831 version in commit 93c55dda092c7 et al,, one listhead initialization was missed. This broke complete operation of the driver whenever AP mode was enabled. This patch fixes https://bugs.archlinux.org/task/27996. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.stable.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: tidspbridge: fix incorrect free to drv_datapOmar Ramirez Luna
This structure is still used after it has been freed, since it is being allocated in probe, calls to free it have been moved to module's remove routine. This should fix the follwoing messages when attempting to remove the module: drv_get_first_dev_extension: Failed to retrieve the object handle drv_get_first_dev_extension: Failed to retrieve the object handle drv_destroy: Failed to store DRV object mgr_destroy: Failed to store MGR object Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: tidspbridge: fix bridge_open memory leaksOmar Ramirez Luna
There are two members of pr_ctxt allocated during bridge_open that are never freed resulting in memory leaks, these are stream_id and node_id, they are now freed on release of the handle (bridge_release) right before freeing pr_ctxt. Error path for bridge_open was also fixed since the same variables could result in memory leaking due to missing handling of failure scenarios. While at it, the indentation changes were introduced to avoid interleaved goto statements inside big if blocks. Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: android: lowmemorykiller: Don't wait more than one second for a ↵Arve Hjønnevåg
process to die If a process forked and the child process was killed by the lowmemorykiller, the lowmemory killer would be disabled until the parent process reaped the child or it died itself. Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: zcache: fix serialization bug in zv statsSeth Jennings
In a multithreaded workload, the zv_curr_dist_counts and zv_cumul_dist_counts statistics are being corrupted because the increments and decrements in zv_create and zv_free are not atomic. This patch converts these statistics and their corresponding increments/decrements/reads to atomic operations. Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Acked-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08staging: fix go7007-usb licenseRandy Dunlap
Add MODULE_LICENSE() for this source module to fix build warning: WARNING: modpost: missing MODULE_LICENSE() in drivers/staging/media/go7007/go7007-usb.o see include/linux/module.h for more information Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: Ross Cohen <rcohen@snurgle.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: android: binder: Fix crashes when sharing a binder file between ↵Arve Hjønnevåg
processes Opening the binder driver and sharing the file returned with other processes (e.g. by calling fork) can crash the kernel. Prevent these crashes with the following changes: - Add a mutex to protect against two processes mmapping the same binder_proc. - After locking mmap_sem, check that the vma we want to access (still) points to the same mm_struct. - Use proc->tsk instead of current to get the files struct since this is where we get the rlimit from. Signed-off-by: Arve Hjønnevåg <arve@android.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-02-08Staging: android: Remove pmem driverShuah Khan
Addroid pmem driver is no longer used in any of the Android products. This patch removes pmem driver from Android staging area Reference: https://lkml.org/lkml/2012/1/23/183 Signed-off-by: Shuah Khan <shuahkhan@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08Staging: asus_oled: fix NULL-ptr crash on unloadingPekka Paalanen
Asus_oled triggers the following bug on module unloading: usbcore: deregistering interface driver asus-oled BUG: unable to handle kernel NULL pointer dereference at 0000000000000038 IP: [<ffffffff8111292b>] sysfs_delete_link+0x30/0x66 Call Trace: [<ffffffff81225373>] device_remove_class_symlinks+0x6b/0x70 [<ffffffff812256a8>] device_del+0x9f/0x1ab [<ffffffff812257c5>] device_unregister+0x11/0x1e [<ffffffffa000cb82>] asus_oled_disconnect+0x4f/0x9e [asus_oled] [<ffffffff81277430>] usb_unbind_interface+0x54/0x103 [<ffffffff812276c4>] __device_release_driver+0xa2/0xeb [<ffffffff81227794>] driver_detach+0x87/0xad [<ffffffff812269e9>] bus_remove_driver+0x91/0xc1 [<ffffffff81227fb4>] driver_unregister+0x66/0x6e [<ffffffff812771ed>] usb_deregister+0xbb/0xc4 [<ffffffffa000ce87>] asus_oled_exit+0x2f/0x31 [asus_oled] [<ffffffff81068365>] sys_delete_module+0x1b8/0x21b [<ffffffff810ae3de>] ? do_munmap+0x2ef/0x313 [<ffffffff813699bb>] system_call_fastpath+0x16/0x1b This is due to an incorrect destruction sequence in asus_oled_exit(). Fix the order, fixes the bug. Tested on an Asus G50V laptop only. Cc: Jakub Schmidtke <sjakub@gmail.com> Signed-off-by: Pekka Paalanen <pq@iki.fi> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08Staging: asus_oled: fix image processingPekka Paalanen
Programming an image was broken, because odev->buf_offs was not advanced for val == 0 in append_values(). This regression was introduced in: commit 1ff12a4aa354bed093a0240d5e6347b1e27601bc Author: Kevin A. Granade <kevin.granade@gmail.com> Date: Sat Sep 5 01:03:39 2009 -0500 Staging: asus_oled: Cleaned up checkpatch issues. Fix the image processing by special-casing val == 0. I have tested this change on an Asus G50V laptop only. Cc: Jakub Schmidtke <sjakub@gmail.com> Cc: Kevin A. Granade <kevin.granade@gmail.com> Signed-off-by: Pekka Paalanen <pq@iki.fi> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08Staging: android: binder: Don't call dump_stack in binder_vma_openArve Hjønnevåg
If user-space partially unmaps the driver, binder_vma_open would dump the kernel stack. This is not a kernel bug however and will be treated as if the whole area was unmapped once binder_vma_close gets called. Signed-off-by: Arve Hjønnevåg <arve@android.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08staging: r8712u: Add new Sitecom UsB IDLarry Finger
Add USB ID for SITECOM WLA-1000 V1 001 WLAN Reported-and-tested-by: Roland Gruber <post@rolandgruber.de> Reported-and-tested-by: Dario Lucia <dario.lucia@gmail.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08zcache: Set SWIZ_BITS to 8 to reduce tmem bucket lock contention.Dan Magenheimer
SWIZ_BITS > 8 results in a much larger number of "tmem_obj" allocations, likely one per page-placed-in-frontswap. The tmem_obj is not huge (roughly 100 bytes), but it is large enough to add a not-insignificant memory overhead to zcache. The SWIZ_BITS=8 will get roughly the same lock contention without the space wastage. The effect of SWIZ_BITS can be thought of as "2^SWIZ_BITS is the number of unique oids that be generated" (This concept is limited to frontswap's use of tmem). Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08zcache: fix deadlock conditionDan Magenheimer
I discovered this deadlock condition awhile ago working on RAMster but it affects zcache as well. The list spinlock must be locked prior to the page spinlock and released after. As a result, the page copy must also be done while the locks are held. Applies to 3.2. Konrad, please push (via GregKH?)... this is definitely a bug fix so need not be pushed during a -rc0 window. Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08staging: drm/omap: fix locking issueRob Clark
The create/free mmap offset code must be synchronized. Yet only some callers of omap_gem_mmap_offset() held struct_mutex. Leading to various crashes around drm_mm_insert_helper_range(). (In the free-object path, which is currently the only place we drm_gem_free_mmap_offset(), struct_mutex is already held.) Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08drivers/staging/omapdrm/omap_fbdev.c: move free after usesJulia Lawall
Move the free after the final uses. The semantic patch that makes this report is available in scripts/coccinelle/free/kfree.cocci. More information about semantic patching is available at http://coccinelle.lip6.fr/ Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08staging: drm/omap: fix minimum width/heightRob Clark
Fix minimum width/height so planes could be used to implement hw mouse cursor. Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08staging: drm/omap: updates for DSS fifomerge API changesRob Clark
Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08staging: drm/omap: multiplanar and YUV supportRob Clark
Add support in framebuffer objects for other color formats and multi- planar YUV (NV12). Since this requires changing the API between the plane and fb for getting scanout information (paddr, etc), take advantage of the opportunity and put in place a way to allow fb's to be unpinned when they are not being scanned out. Now, before start of scanout the plane calls omap_framebuffer_pin() which takes care to pin all the backing bo's, then omap_framebuffer_update_scanout() however many times to update the scanout address(es), etc, and then when finished omap_framebuffer_unpin(). Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08staging: drm/omap: add drm_plane supportRob Clark
Because framebuffer layer and overlay scanout video pipes are basically thing in OMAP display subsystem (the only difference being that the first video pipe does not support scaling or YUV formats), much of the CRTC code is pulled into the plane implementation, and a private plane object is used by the CRTC object. This avoids code duplication between the plane and CRTC. Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08staging: drm/omap: drm API update: addfb2Rob Clark
Update to reflect changes in: "drm: add an fb creation ioctl that takes a pixel format v5" Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08staging: drm/omap: drm API update: make fops struct constRob Clark
Update to reflect changes in: "Make the per-driver file_operations struct const" Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08staging: delete gma500 driverGreg Kroah-Hartman
It's now "properly" merged into the DRM tree in the kernel, so delete the staging version of the driver as it is far obsolete and broken. Requested-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2012-02-08drm/i915: fixup interlaced bits clearing in PIPECONF on PCH_SPLIT (v2)Keith Packard
An identical patch has been merged for i9xx_crtc_mode_set: Commit 59df7b1771c150163e522f33c638096ab0efbf42 Author: Christian Schmidt <schmidt@digadd.de> Date: Mon Dec 19 20:03:33 2011 +0100 drm/intel: Fix initialization if startup happens in interlaced mode [v2] But that one neglected to fix up the ironlake+ path. This should fix the issue reported by Alfonso Fiore where booting with only a HDMI cable connected to his TV failed to display anything. The issue is that the bios set up things for 1080i and used the pannel fitter to scale up the lower progressive resolutions. We failed to clear the interlace bit in the PIPEACONF register, resulting in havoc. v2: Be more paranoid and just unconditionally clear the field before setting new values. Cc: Peter Ross <pross@xvid.org> Cc: Alfonso Fiore <alfonso.fiore@gmail.com> Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Keith Packard <keithp@keithp.com>
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