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2012-03-02regset: Prevent null pointer reference on readonly regsetsH. Peter Anvin
The regset common infrastructure assumed that regsets would always have .get and .set methods, but not necessarily .active methods. Unfortunately people have since written regsets without .set methods. Rather than putting in stub functions everywhere, handle regsets with null .get or .set methods explicitly. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Acked-by: Roland McGrath <roland@hack.frob.com> Cc: <stable@vger.kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-02[S390] qdio: fix handler function arguments for zfcp data routerSteffen Maier
Git commit 25f269f17316549e "[S390] qdio: EQBS retry after CCQ 96" introduced a regression in regard to the zfcp data router. Revoke the incorrect simplification of the function call arguments for the qdio handler to make the zfcp hardware data router working again. This is applicable to 3.2+ kernels. Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com> Reviewed-by: Jan Glauber <jang@linux.vnet.ibm.com> Cc: <stable@vger.kernel.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-03-02perf/x86/kvm: Fix Host-Only/Guest-Only counting with SVM disabledJoerg Roedel
It turned out that a performance counter on AMD does not count at all when the GO or HO bit is set in the control register and SVM is disabled in EFER. This patch works around this issue by masking out the HO bit in the performance counter control register when SVM is not enabled. The GO bit is not touched because it is only set when the user wants to count in guest-mode only. So when SVM is disabled the counter should not run at all and the not-counting is the intended behaviour. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Avi Kivity <avi@redhat.com> Cc: Stephane Eranian <eranian@google.com> Cc: David Ahern <dsahern@gmail.com> Cc: Gleb Natapov <gleb@redhat.com> Cc: Robert Richter <robert.richter@amd.com> Cc: stable@vger.kernel.org # v3.2 Link: http://lkml.kernel.org/r/1330523852-19566-1-git-send-email-joerg.roedel@amd.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-02Block: use a freezable workqueue for disk-event pollingAlan Stern
This patch (as1519) fixes a bug in the block layer's disk-events polling. The polling is done by a work routine queued on the system_nrt_wq workqueue. Since that workqueue isn't freezable, the polling continues even in the middle of a system sleep transition. Obviously, polling a suspended drive for media changes and such isn't a good thing to do; in the case of USB mass-storage devices it can lead to real problems requiring device resets and even re-enumeration. The patch fixes things by creating a new system-wide, non-reentrant, freezable workqueue and using it for disk-events polling. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: <stable@kernel.org> Acked-by: Tejun Heo <tj@kernel.org> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-03-02drivers/block/DAC960: fix -Wuninitialized warningDanny Kukawka
Set CommandMailbox with memset before use it. Fix for: drivers/block/DAC960.c: In function ‘DAC960_V1_EnableMemoryMailboxInterface’: arch/x86/include/asm/io.h:61:1: warning: ‘CommandMailbox.Bytes[12]’ may be used uninitialized in this function [-Wuninitialized] drivers/block/DAC960.c:1175:30: note: ‘CommandMailbox.Bytes[12]’ was declared here Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-03-02drivers/block/DAC960: fix DAC960_V2_IOCTL_Opcode_T -Wenum-compare warningDanny Kukawka
Fixed compiler warning: comparison between ‘DAC960_V2_IOCTL_Opcode_T’ and ‘enum <anonymous>’ Renamed enum, added a new enum for SCSI_10.CommandOpcode in DAC960_V2_ProcessCompletedCommand(). Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-03-02block: fix __blkdev_get and add_disk race conditionStanislaw Gruszka
The following situation might occur: __blkdev_get: add_disk: register_disk() get_gendisk() disk_block_events() disk->ev == NULL disk_add_events() __disk_unblock_events() disk->ev != NULL --ev->block Then we unblock events, when they are suppose to be blocked. This can trigger events related block/genhd.c warnings, but also can crash in sd_check_events() or other places. I'm able to reproduce crashes with the following scripts (with connected usb dongle as sdb disk). <snip> DEV=/dev/sdb ENABLE=/sys/bus/usb/devices/1-2/bConfigurationValue function stop_me() { for i in `jobs -p` ; do kill $i 2> /dev/null ; done exit } trap stop_me SIGHUP SIGINT SIGTERM for ((i = 0; i < 10; i++)) ; do while true; do fdisk -l $DEV 2>&1 > /dev/null ; done & done while true ; do echo 1 > $ENABLE sleep 1 echo 0 > $ENABLE done </snip> I use the script to verify patch fixing oops in sd_revalidate_disk http://marc.info/?l=linux-scsi&m=132935572512352&w=2 Without Jun'ichi Nomura patch titled "Fix NULL pointer dereference in sd_revalidate_disk" or this one, script easily crash kernel within a few seconds. With both patches applied I do not observe crash. Unfortunately after some time (dozen of minutes), script will hung in: [ 1563.906432] [<c08354f5>] schedule_timeout_uninterruptible+0x15/0x20 [ 1563.906437] [<c04532d5>] msleep+0x15/0x20 [ 1563.906443] [<c05d60b2>] blk_drain_queue+0x32/0xd0 [ 1563.906447] [<c05d6e00>] blk_cleanup_queue+0xd0/0x170 [ 1563.906454] [<c06d278f>] scsi_free_queue+0x3f/0x60 [ 1563.906459] [<c06d7e6e>] __scsi_remove_device+0x6e/0xb0 [ 1563.906463] [<c06d4aff>] scsi_forget_host+0x4f/0x60 [ 1563.906468] [<c06cd84a>] scsi_remove_host+0x5a/0xf0 [ 1563.906482] [<f7f030fb>] quiesce_and_remove_host+0x5b/0xa0 [usb_storage] [ 1563.906490] [<f7f03203>] usb_stor_disconnect+0x13/0x20 [usb_storage] Anyway I think this patch is some step forward. As drawback, I do not teardown on sysfs file create error, because I do not know how to nullify disk->ev (since it can be used). However add_disk error handling practically does not exist too, and things will work without this sysfs file, except events will not be exported to user space. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Tejun Heo <tj@kernel.org> Cc: stable@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-03-02block: Fix setting bio flags in drivers (sd_dif/floppy)Muthukumar R
Fix setting bio flags in drivers (sd_dif/floppy). Signed-off-by: Muthukumar R <muthur@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-03-02block: Fix NULL pointer dereference in sd_revalidate_diskJun'ichi Nomura
Since 2.6.39 (1196f8b), when a driver returns -ENOMEDIUM for open(), __blkdev_get() calls rescan_partitions() to remove in-kernel partition structures and raise KOBJ_CHANGE uevent. However it ends up calling driver's revalidate_disk without open and could cause oops. In the case of SCSI: process A process B ---------------------------------------------- sys_open __blkdev_get sd_open returns -ENOMEDIUM scsi_remove_device <scsi_device torn down> rescan_partitions sd_revalidate_disk <oops> Oopses are reported here: http://marc.info/?l=linux-scsi&m=132388619710052 This patch separates the partition invalidation from rescan_partitions() and use it for -ENOMEDIUM case. Reported-by: Huajun Li <huajun.li.lee@gmail.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Acked-by: Tejun Heo <tj@kernel.org> Cc: stable@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2012-03-02ALSA: hda - Kill hyphenated namesTakashi Iwai
Kill hyphens from "Line-Out" name strings, as suggested by Mark Brown. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-03-02Merge tag 'perf-urgent-for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Various smaller perf/urgent fixes. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-01vmxnet3: Fix transport header sizeShreyas Bhatewara
Fix transport header size Fix the transpoert header size for UDP packets. Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-01Merge git://www.linux-watchdog.org/linux-watchdogLinus Torvalds
Watchdog updates from Wim Van Sebroeck: * git://www.linux-watchdog.org/linux-watchdog: watchdog: fix GETTIMEOUT ioctl in booke_wdt watchdog: update maintainers git entry watchdog: Fix typo in pnx4008_wdt.c watchdog: Fix typo in Kconfig watchdog: fix error in probe() of s3c2410_wdt (reset at booting) watchdog: hpwdt: clean up set_memory_x call for 32 bit
2012-03-01Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull from Mark Brown: "A simple, driver specific fix. This device isn't widely used outside of Marvell reference boards most of which are probably used with their BSPs rather than with mainline so low risk." * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: fix the ldo configure according to 88pm860x spec
2012-03-01Merge branch 'i2c-embedded/for-3.3' of ↵Linus Torvalds
git://git.pengutronix.de/git/wsa/linux-2.6 i2c bugfix from Wolfram Sang: "This patch fixes a wrong assumption in the mxs-i2c-driver about a command queue being done. Without it, we have seen races when the bus was under load." * 'i2c-embedded/for-3.3' of git://git.pengutronix.de/git/wsa/linux-2.6: i2c: mxs: only flag completion when queue is completely done
2012-03-01Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
DRM fixes from Dave Airlie: intel: fixes for output regression on 965GM, an oops and a machine hang radeon: uninitialised var (that gcc didn't warn about for some reason) + a couple of correctness fixes. exynos: fixes for various things, drop some chunks of unused code. * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/radeon/kms/vm: fix possible bug in radeon_vm_bo_rmv() drm/radeon: fix uninitialized variable drm/radeon/kms: fix radeon_dp_get_modes for LVDS bridges (v2) drm/i915: Remove use of the autoreported ringbuffer HEAD position drm/i915: Prevent a machine hang by checking crtc->active before loading lut drm/i915: fix operator precedence when enabling RC6p drm/i915: fix a sprite watermark computation to avoid divide by zero if xpos<0 drm/i915: fix mode set on load pipe. (v2) drm/exynos: exynos_drm.h header file fixes drm/exynos: added panel physical size. drm/exynos: added postclose to release resource. drm/exynos: removed exynos_drm_fbdev_recreate function. drm/exynos: fixed page flip issue. drm/exynos: added possible_clones setup function. drm/exynos: removed pageflip_event_list init code when closed. drm/exynos: changed priority of mixer layers. drm/exynos: Fix typo in exynos_mixer.c
2012-03-01Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: [S390] memory hotplug: prevent memory zone interleave [S390] crash_dump: remove duplicate include [S390] KEYS: Enable the compat keyctl wrapper on s390x
2012-03-01enic: fix an endian bug in enic_probe()Dan Carpenter
"num_vfs" is a u32 but we only use the high 16 bits and the low 16bits are left as zero. That isn't a problem for little endian systems but it will break on big endian ones. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-01pch_gbe: memory corruption calling pch_gbe_validate_option()Dan Carpenter
pch_gbe_validate_option() modifies 32 bits of memory but we pass &hw->phy.autoneg_advertised which only has 16 bits and &hw->mac.fc which only has 8 bits. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-01Merge branch 'master' of git://1984.lsi.us.es/netDavid S. Miller
2012-03-01x86/PCI: do not tie MSI MS-7253 use_crs quirk to BIOS versionJonathan Nieder
Carlos was getting WARNING: at drivers/pci/pci.c:118 pci_ioremap_bar+0x24/0x52() when probing his sound card, and sound did not work. After adding pci=use_crs to the kernel command line, no more trouble. Ok, we can add a quirk. dmidecode output reveals that this is an MSI MS-7253, for which we already have a quirk, but the short-sighted author tied the quirk to a single BIOS version, making it not kick in on Carlos's machine with BIOS V1.2. If a later BIOS update makes it no longer necessary to look at the _CRS info it will still be harmless, so let's stop trying to guess which versions have and don't have accurate _CRS tables. Addresses https://bugtrack.alsa-project.org/alsa-bug/view.php?id=5533 Also see <https://bugzilla.kernel.org/show_bug.cgi?id=42619>. Reported-by: Carlos Luna <caralu74@gmail.com> Reviewed-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2012-03-01Merge branch 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixesArnd Bergmann
* 'at91-fixes' of git://github.com/at91linux/linux-at91: ARM: at91/dma: DMA controller registering with DT support ARM: at91/dma: remove platform data from DMA controller
2012-03-01Merge tag 'asoc-3.3' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus A small fix for the SSI driver and a fix for system shutdown with modern devices. Most of the modern devices will never get shut down normally with a visible kernel log as the systems they're in tend not to shut down often and when they do it's usually in form factors that don't have a user visible console.
2012-03-01[media] smsusb: fix the default delivery system settingMauro Carvalho Chehab
There are two issues on the default delivery system setting for smsusb: 1) instead of filling the delivery system for the per-client frontend.ops, it were changing the global structure; 2) The client->frontend.ops copy were keeping the previous value of the template. So, the first time the device was inserted, it was using the wrong value. Reported-by: Eddi De Pieri <eddi@depieri.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-03-01memblock: Fix size aligning of memblock_alloc_base_nid()Tejun Heo
memblock allocator aligns @size to @align to reduce the amount of fragmentation. Commit: 7bd0b0f0da ("memblock: Reimplement memblock allocation using reverse free area iterator") Broke it by incorrectly relocating @size aligning to memblock_find_in_range_node(). As the aligned size is not propagated back to memblock_alloc_base_nid(), the actually reserved size isn't aligned. While this increases memory use for memblock reserved array, this shouldn't cause any critical failure; however, it seems that the size aligning was hiding a use-beyond-allocation bug in sparc64 and losing the aligning causes boot failure. The underlying problem is currently being debugged but this is a proper fix in itself, it's already pretty late in -rc cycle for boot failures and reverting the change for debugging isn't difficult. Restore the size aligning moving it to memblock_alloc_base_nid(). Reported-by: Meelis Roos <mroos@linux.ee> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: David S. Miller <davem@davemloft.net> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20120228205621.GC3252@dhcp-172-17-108-109.mtv.corp.google.com Signed-off-by: Ingo Molnar <mingo@elte.hu> LKML-Reference: <alpine.SOC.1.00.1202130942030.1488@math.ut.ee>
2012-03-01ARM: S3C24XX: Fix restart on S3C2442Heiko Stuebner
Commit b27b072791dc (ARM: 7265/1: restart: S3C24XX: use new restart hook) introduced the new restart hook also for the S3C244x cpus, but it was only defined in the S3C2440 scope, i.e. when CPU_S3C2440 was selected. Devices using the S3C2442 like the GTA02 normally don't select this CPU which leads to compilation errors like: LD .tmp_vmlinux1 arch/arm/mach-s3c2440/built-in.o:(.arch.info.init+0x3c): undefined reference to `s3c2440_restart' make: *** [.tmp_vmlinux1] Error 1 Therefore move the s3c2440_restart function to s3c244x.c which is common to both cpus and also fix the naming to reflect this. Reported-and-tested-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-01ARM: SAMSUNG: Fix memory size for hsotgJoonyoung Shim
The device link core registers for hsotg is base + 0000h ~ base + 11000h. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> [Rebased on the newest git/kgene/linux-samsung #for-next] Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2012-03-01mfd: Correct readability of WM8994 DC servo 4E registerMark Brown
It should be marked as readable but wasn't, breaking DC servo operation. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-02-29Merge tag 'for-linus' of git://github.com/rustyrussell/linuxLinus Torvalds
Merge virtio pull request from Rusty Russell. * tag 'for-linus' of git://github.com/rustyrussell/linux: virtio: balloon: leak / fill balloon across S4
2012-03-01virtio: balloon: leak / fill balloon across S4Amit Shah
commit e562966dbaf49e7804097cd991e5d3a8934fc148 added support for S4 to the balloon driver. The freeze function did nothing to free the pages, since reclaiming the pages from the host to immediately give them back (if S4 was successful) seemed wasteful. Also, if S4 wasn't successful, the guest would have to re-fill the balloon. On restore, the pages were supposed to be marked freed and the free page counters were incremented to reflect the balloon was totally deflated. However, this wasn't done right. The pages that were earlier taken away from the guest during a balloon inflation operation were just shown as used pages after a successful restore from S4. Just a fancy way of leaking lots of memory. Instead of trying that, just leak the balloon on freeze and fill it on restore/thaw paths. This works properly now. The optimisation to not leak can be added later on after a bit of refactoring of the code. Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-02-29OMAPDSS: APPLY: make ovl_enable/disable synchronousTomi Valkeinen
ovl->enable/disable are meant to be synchronous so that they can handle the configuration of fifo sizes. The current kernel doesn't configure fifo sizes yet, and so the code doesn't need to block to function (from omapdss driver's perspective). However, for the users of omapdss a non-blocking ovl->disable is confusing, because they don't know when the memory area is not used any more. Furthermore, when the fifo size configuration is added in the next merge window, the change from non-blocking to blocking could cause side effects to the users of omapdss. So by making the functions block already will keep them behaving in the same manner. And, while not the main purpose of this patch, this will also remove the compile warning: drivers/video/omap2/dss/apply.c:350: warning: 'wait_pending_extra_info_updates' defined but not used Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-02-29OMAPDSS: panel-dvi: Add Kconfig dependency on I2CTomi Valkeinen
panel-dvi uses i2c, but the Kconfig didn't have dependency on I2C. Add it. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-02-29ARM: OMAP: id: Add missing break statement in omap3xxx_check_revisionVaibhav Hiremath
Add missing break statement in the function omap3xxx_check_revision. The commit id 4390f5b2cb1f56 [ARM: OMAP: TI814X: Add cpu type macros and detection support], removed the 'break' statement from the function omap3xxx_check_revision(), resulting into wrong omap/cpu_revision initialization for AM335x devices. Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> [tony@atomide.com: refreshed to apply after changes to cpu_rev] Signed-off-by: Tony Lindgren <tony@atomide.com>
2012-02-29perf probe: Ensure offset provided is not greater than function length ↵Prashanth Nageshappa
without DWARF info too The 'perf probe' command allows kprobe to be inserted at any offset from a function start, which results in adding kprobes to unintended location. (example: perf probe do_fork+10000 is allowed even though size of do_fork is ~904). My previous patch https://lkml.org/lkml/2012/2/24/42 addressed the case where DWARF info was available for the kernel. This patch fixes the case where perf probe is used on a kernel without debuginfo available. Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Jason Baron <jbaron@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/4F4C544D.1010909@linux.vnet.ibm.com Signed-off-by: Prashanth Nageshappa <prashanth@linux.vnet.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-02-29perf tools: Ensure comm string is properly terminatedDavid Ahern
If threads in a multi-threaded process have names shorter than the main thread the comm for the named threads is not properly terminated. E.g., for the process 'namedthreads' where each thread is named noploop%d where %d is the thread number: Before: perf script -f comm,tid,ip,sym,dso noploop:4ads 21616 400a49 noploop (/tmp/namedthreads) The 'ads' in the thread comm bleeds over from the process name. After: perf script -f comm,tid,ip,sym,dso noploop:4 21616 400a49 noploop (/tmp/namedthreads) Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1330111898-68071-1-git-send-email-dsahern@gmail.com Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-02-29perf probe: Ensure offset provided is not greater than function lengthPrashanth Nageshappa
The perf probe command allows kprobe to be inserted at any offset from a function start, which results in adding kprobes to unintended location. Example: perf probe do_fork+10000 is allowed even though size of do_fork is ~904. This patch will ensure probe addition fails when the offset specified is greater than size of the function. Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jason Baron <jbaron@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Link: http://lkml.kernel.org/r/4F473F33.4060409@linux.vnet.ibm.com Signed-off-by: Prashanth Nageshappa <prashanth@linux.vnet.ibm.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-02-29perf evlist: Return first evsel for non-sample event on old kernelNamhyung Kim
On old kernels that don't support sample_id_all feature, perf_evlist__id2evsel() returns NULL for non-sampling events. This breaks perf top when multiple events are given on command line. Fix it by using first evsel in the evlist. This will also prevent getting the same (potential) problem in such new tool/ old kernel combo. Suggested-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1329702447-25045-1-git-send-email-namhyung.kim@lge.com Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-02-29Merge tag 'fixes-3.3-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Arnd Bergmann says: "Another set of arm-soc bug fixes on top of v3.3-rc5. The few larger bits are all for devices that still need to get set up in board code. Only three platforms are in this set of fixes: omap2+, pxa and lpc32xx." * tag 'fixes-3.3-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (22 commits) ARM: LPC32xx: serial.c: Fixed loop limit ARM: LPC32xx: serial.c: HW bug workaround ARM: LPC32xx: irq.c: Clear latched event ARM: LPC32xx: Fix interrupt controller init ARM: LPC32xx: Fix irq on GPI_28 ARM: OMAP2: fix mailbox init code ARM: OMAP2+: gpmc-smsc911x: add required smsc911x regulators ARM: OMAP1: Fix out-of-bounds array access for Innovator OMAP3 EVM: remove out-of-bounds array access of gpio_leds ARM: OMAP: Fix build error when mmc_omap is built as module ARM: OMAP: Fix kernel panic with HSMMC when twl4030_gpio is a module pxa/hx4700: add platform device and I2C info for AK4641 codec arch/arm/mach-pxa/: included linux/gpio.h twice arch/arm/mach-mmp/: some files include some headers twice ARM: pxa: fix error handling in pxa2xx_drv_pcmcia_probe ARM: pxa: fix including linux/gpio.h twice ARM: pxa: fix mixed declarations and code in sharpsl_pm ARM: pxa: fix wrong parsing gpio event on spitz ARM: OMAP2+: usb-host: fix compile warning ARM: OMAP4: Move the barrier memboclk_steal() as part of reserve callback ...
2012-02-29tg3: Fix tg3_get_stats64 for 5700 / 5701 devsMatt Carlson
tg3_get_stats64() takes tp->lock when dealing with non-serdes bcm5700 and bcm5701 devices. However, functions that call tg3_halt() have already acquired tp->lock. When tg3_get_stats64() is called in tg3_halt(), deadlock will occur. This patch fixes the problem by separating the stat gathering code into a new tg3_get_nstats() function. tg3_get_stats64() is recoded to call this function and take tp->lock. The code that takes tp->lock in tg3_calc_crc_errors() has been removed. Function signatures have been cleaned up too. Signed-off-by: Matt Carlson <mcarlson@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-29Merge tag 'for-3.3' of git://openrisc.net/jonas/linuxLinus Torvalds
Build fixes for 3.3 from Jonas Bonn * tag 'for-3.3' of git://openrisc.net/jonas/linux: openrisc: Fix up audit_syscall_[entry|exit]() usage openrisc: include export.h for EXPORT_SYMBOL
2012-02-29mwifiex: reset encryption mode flag before associationAmitkumar Karwar
Recent commit "mwifiex: clear previous security setting during association" fixes association failure problems observed in some corner cases by clearing previous security setting before each association. We should reset encryption mode flag as well. This patch takes care of it. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-29carl9170: fix frame delivery if sta is in powersave modeChristian Lamparter
Nicolas Cavallari discovered that carl9170 has some serious problems delivering data to sleeping stations. It turns out that the driver was not honoring two important flags (IEEE80211_TX_CTL_POLL_RESPONSE and IEEE80211_TX_CTL_CLEAR_PS_FILT) which are set on frames that should be sent although the receiving station is still in powersave mode. Cc: stable <stable@vger.kernel.org> Reported-by: Nicolas Cavallari <Nicolas.Cavallari@lri.fr> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-29carl9170: Fix memory accounting when sta is in power-save mode.Nicolas Cavallari
On Access Point mode, when transmitting a packet, if the destination station is in powersave mode, we abort transmitting the packet to the device queue, but we do not reclaim the allocated memory. Given enough packets, we can go in a state where there is no packet on the device queue, but we think the device has no memory left, so no packet gets transmitted, connections breaks and the AP stops working. This undo the allocation done in the TX path when the station is in power-save mode. Signed-off-by: Nicolas Cavallari <cavallar@lri.fr> Acked-by: Christian Lamparter <chunkeey@googlemail.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2012-02-29drm/radeon/kms/vm: fix possible bug in radeon_vm_bo_rmv()Sebastian Biemueller
The bo is removed from the list at the top of radeon_vm_bo_rmv(), but then the list is used in radeon_vm_bo_update_pte() to look up the vm. remove the bo_list entry at the end of the function instead. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Jerome Glisse <j.glisse@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29ARM: at91/dma: DMA controller registering with DT supportNicolas Ferre
Device tree support on at91sam9g45 family SoC. Only call platform_device_register() if no dma-controller node is found in device tree. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-29ARM: at91/dma: remove platform data from DMA controllerNicolas Ferre
DMA controller can deduce its configuration data from the platform. Remove the platform data and match device types with the compatible ones. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Grant Likely <grant.likely@secretlab.ca>
2012-02-29ALSA: hda - Add a fake mute featureTakashi Iwai
Some codecs don't supply the mute amp-capabilities although the lowest volume gives the mute. It'd be handy if the parser provides the mute mixers in such a case. This patch adds an extension amp-cap bit (which is used only in the driver) to represent the min volume = mute state. Also modified the amp cache code to support the fake mute feature when this bit is set but the real mute bit is unset. In addition, conexant cx5051 parser uses this new feature to implement the missing mute controls. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42825 Cc: <stable@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-29drm/radeon: fix uninitialized variableChristian König
Without this fix the driver randomly treats textures as arrays and I'm really wondering why gcc isn't complaining about it. Signed-off-by: Christian König <deathsimple@vodafone.de> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-02-29Merge branch 'exynos-drm-fixes' of ↵Dave Airlie
git://git.infradead.org/users/kmpark/linux-2.6-samsung into HEAD * 'exynos-drm-fixes' of git://git.infradead.org/users/kmpark/linux-2.6-samsung: drm/exynos: exynos_drm.h header file fixes drm/exynos: added panel physical size. drm/exynos: added postclose to release resource. drm/exynos: removed exynos_drm_fbdev_recreate function. drm/exynos: fixed page flip issue. drm/exynos: added possible_clones setup function. drm/exynos: removed pageflip_event_list init code when closed. drm/exynos: changed priority of mixer layers. drm/exynos: Fix typo in exynos_mixer.c
2012-02-29drm/radeon/kms: fix radeon_dp_get_modes for LVDS bridges (v2)Alex Deucher
Need to call ExternalEncoderControl to set up DDC before trying to get an EDID for all DP bridge chips (including DP to LVDS). Also remove redundant encoder assignment. V2: fix typo in commit message. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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