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linux/drivers
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Bartlomiej Zolnierkiewicz da331ba8e9 drivers/dma/pl330.c: fix locking in pl330_free_chan_resources() 
tasklet_kill() may sleep so call it before taking pch->lock.

Fixes following lockup:

  BUG: scheduling while atomic: cat/2383/0x00000002
  Modules linked in:
    unwind_backtrace+0x0/0xfc
    __schedule_bug+0x4c/0x58
    __schedule+0x690/0x6e0
    sys_sched_yield+0x70/0x78
    tasklet_kill+0x34/0x8c
    pl330_free_chan_resources+0x24/0x88
    dma_chan_put+0x4c/0x50
  [...]
  BUG: spinlock lockup suspected on CPU#0, swapper/0/0
   lock: 0xe52aa04c, .magic: dead4ead, .owner: cat/2383, .owner_cpu: 1
    unwind_backtrace+0x0/0xfc
    do_raw_spin_lock+0x194/0x204
    _raw_spin_lock_irqsave+0x20/0x28
    pl330_tasklet+0x2c/0x5a8
    tasklet_action+0xfc/0x114
    __do_softirq+0xe4/0x19c
    irq_exit+0x98/0x9c
    handle_IPI+0x124/0x16c
    gic_handle_irq+0x64/0x68
    __irq_svc+0x40/0x70
    cpuidle_wrap_enter+0x4c/0xa0
    cpuidle_enter_state+0x18/0x68
    cpuidle_idle_call+0xac/0xe0
    cpu_idle+0xac/0xf0

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Jassi Brar <jassisinghbrar@gmail.com>
Cc: Vinod Koul <vinod.koul@linux.intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-07-03 16:07:22 -07:00
..
accessibility
acpi Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-07-02 16:30:46 -07:00
amba
ata libata-acpi: add back ACPI based hotplug functionality 2013-06-25 00:51:33 +02:00
atm
auxdisplay
base firmware loader: fix another compile warning with PM_SLEEP unset 2013-06-25 21:04:22 -07:00
bcma
block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-02 09:28:37 -07:00
bluetooth Bluetooth: btmrvl: fix thread stopping race 2013-06-13 13:05:40 -04:00
bus ARM SoC device tree changes 2013-07-02 14:23:01 -07:00
cdrom
char Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
clk ARM SoC late changes 2013-07-02 14:42:51 -07:00
clocksource Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2013-07-03 09:46:29 -07:00
connector
cpufreq ARM SoC driver specific changes 2013-07-02 14:33:21 -07:00
cpuidle ARM SoC specific changes 2013-07-02 13:43:38 -07:00
crypto ARM SoC driver specific changes 2013-07-02 14:33:21 -07:00
dca
devfreq
dio
dma drivers/dma/pl330.c: fix locking in pl330_free_chan_resources() 2013-07-03 16:07:22 -07:00
edac
eisa
extcon extcon: Palmas Extcon Driver 2013-06-17 16:08:36 -07:00
firewire
firmware Merge 3.10-rc6 into driver-core-next 2013-06-17 16:57:20 -07:00
fmc FMC: fix error handling in probe() function 2013-06-24 16:23:25 -07:00
gpio Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-07-02 16:14:35 -07:00
gpu Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-02 09:28:37 -07:00
hid HID: multitouch: prevent memleak with the allocated name 2013-06-12 11:13:38 +02:00
hsi
hv drivers: hv: allocate synic structures before hv_synic_init() 2013-06-24 16:24:17 -07:00
hwmon hwmon: (adm1021) Strengthen chip detection for ADM1021, LM84 and MAX1617 2013-06-07 12:29:31 -07:00
hwspinlock
i2c ARM SoC specific changes 2013-07-02 13:43:38 -07:00
ide
idle
iio staging:iio:adis16130: Move out of staging 2013-06-11 20:34:36 +01:00
infiniband
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2013-06-23 16:12:46 -10:00
iommu Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-07-02 16:15:23 -07:00
ipack
irqchip Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-07-02 16:14:35 -07:00
isdn
leds
lguest x86, flags: Rename X86_EFLAGS_BIT1 to X86_EFLAGS_FIXED 2013-06-25 16:25:32 -07:00
macintosh
mailbox mailbox/omap: move the OMAP mailbox framework to drivers 2013-06-11 11:41:51 -05:00
md A few bugfixes for md 2013-06-13 10:13:29 -07:00
media ARM SoC specific changes 2013-07-02 13:43:38 -07:00
memory memory: tegra30-mc: Fix IRQ handler. 2013-06-17 16:46:06 -07:00
memstick
message
mfd Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-07-02 16:14:35 -07:00
misc Driver core patches for 3.11-rc1 2013-07-02 11:44:19 -07:00
mmc Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2013-07-03 09:46:29 -07:00
mtd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
net Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
nfc
ntb
nubus
of PM voltage domain clean-up via Kevin Hilman <khilman@linaro.org>: 2013-06-20 16:41:37 +02:00
oprofile
parisc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
parport
pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
pcmcia Driver core patches for 3.11-rc1 2013-07-02 11:44:19 -07:00
pinctrl ARM SoC late changes 2013-07-02 14:42:51 -07:00
platform
pnp isapnp: switch to fixed_size_llseek() 2013-06-29 12:57:48 +04:00
power
pps
ps3
ptp build some drivers only when compile-testing 2013-06-24 16:41:32 -07:00
pwm
rapidio
regulator ARM SoC device tree changes 2013-07-02 14:23:01 -07:00
remoteproc mailbox/omap: move the OMAP mailbox framework to drivers 2013-06-11 11:41:51 -05:00
reset
rpmsg
rtc imx soc changes for 3.11: 2013-06-20 02:15:45 +02:00
s390 netiucv: Hold rtnl between name allocation and device registration. 2013-06-13 17:41:18 -07:00
sbus
scsi Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
sfi
sh
sn
spi ARM SoC specific changes 2013-07-02 13:43:38 -07:00
ssb
ssbi Cleanups for MSM for 3.11 2013-06-14 18:28:02 -07:00
staging Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
target iscsi-target: Remove left over v3.10-rc debug printks 2013-06-20 16:47:41 -07:00
tc
thermal thermal: exynos: Support both EXYNOS4X12 SoCs 2013-06-19 01:31:50 +09:00
tty Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-07-03 09:10:19 -07:00
uio drivers: uio_pdrv_genirq: Use of_match_ptr() macro 2013-06-25 17:22:30 -07:00
usb ARM SoC late changes 2013-07-02 14:42:51 -07:00
uwb USB: HWA: fix device probe failure 2013-06-24 16:20:43 -07:00
vfio vfio: remap_pfn_range() sets all those flags... 2013-06-29 12:46:41 +04:00
vhost vhost: fix ubuf_info cleanup 2013-06-11 02:46:21 -07:00
video Merge branch 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 2013-07-02 19:53:30 -07:00
virt
virtio
vlynq
vme vme: vme_tsi148.c: fix error return code in tsi148_probe() 2013-06-24 16:23:25 -07:00
w1
watchdog ARM SoC specific changes 2013-07-02 13:43:38 -07:00
xen xen/tmem: Don't over-write tmem_frontswap_poolid after tmem_frontswap_init set it. 2013-06-10 10:14:33 -04:00
zorro zorro: switch to fixed_size_llseek() 2013-06-29 12:57:28 +04:00
Kconfig FMC: create drivers/fmc and toplevel Kconfig question 2013-06-17 16:38:57 -07:00
Makefile FMC: create drivers/fmc and toplevel Kconfig question 2013-06-17 16:38:57 -07:00