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ce020ea532
linux/drivers
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Márton Németh ce020ea532 drm via: initialize object_idr 
The field obejct_idr of struct drm_via_private was introduced with the
commit http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=77ee8f3825054f23b17e9c8f728f061defd86cdc .
In that patch idr_init(&dev->object_name_idr) was called instead of
idr_init(&dev_priv->object_idr) by mistake, leaving the dev_priv->object_idr
uninitialized. To be more exact, the object_idr buffer is filled with zeros
because of kzalloc(), but the dev_priv->object_idr.lock spinlock can cause
system freeze at lib/idr.c:move_to_free_list() when spin_lock_irqsave()
is called on this spinlock.

The patch was tested on Clevo D4J, model D410J laptop, on the following
hardware, without AGP kernel module loaded:

  # lspci -s 01:00.0 -n
  01:00.0 0300: 1106:3108 (rev 01)
  # lspci -s 01:00.0 -v
  01:00.0 VGA compatible controller: VIA Technologies, Inc. K8M800/K8N800/K8N800A [S3 UniChrome Pro] (rev 01) (prog-if 00 [VGA controller])
          Subsystem: CLEVO/KAPOK Computer Device 4702
          Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16
          Memory at f0000000 (32-bit, prefetchable) [size=64M]
          Memory at d1000000 (32-bit, non-prefetchable) [size=16M]
          Expansion ROM at <unassigned> [disabled]
          Capabilities: [60] Power Management version 2
          Capabilities: [70] AGP version 3.0

Signed-off-by: Márton Németh <nm127@freemail.hu>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2012-06-16 11:18:38 +01:00
..
accessibility
acpi Merge branches 'bugfix-battery', 'bugfix-misc', 'bugfix-rafael', 'bugfix-turbostat', 'bugfix-video' and 'workaround-pss' into release 2012-06-04 00:48:41 -04:00
amba arm-soc: driver specific updates 2012-05-26 12:22:27 -07:00
ata arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
atm solos-pci: Fix DMA support 2012-05-24 16:22:53 -04:00
auxdisplay
base regmap: Export regmap_reinit_cache() 2012-06-08 05:57:21 +08:00
bcma bcma: fix null pointer in bcma_core_pci_irq_ctl 2012-06-08 13:47:07 -04:00
block mtip32xx: Changes to sysfs entries 2012-05-31 08:46:50 +02:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-24 11:54:29 -07:00
cdrom
char Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2012-06-11 16:31:52 +03:00
clk arm-soc: soc specific changes, part 2 2012-05-26 13:05:55 -07:00
clocksource clocksource: sh_tmu: Use clockevents_config_and_register(). 2012-06-11 17:10:16 +09:00
connector
cpufreq
cpuidle
crypto arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
dca
devfreq Power management updates for 3.5 2012-05-23 14:07:06 -07:00
dio
dma arm-soc: device tree conversions, part 2 2012-05-26 12:57:47 -07:00
edac Merge branch 'x86/trampoline' into x86/urgent 2012-05-30 12:11:32 -07:00
eisa
extcon Driver core pull for 3.5-rc1 2012-05-22 16:02:13 -07:00
firewire IEEE 1394 (FireWire) subsystem updates post v3.4: 2012-05-24 12:57:47 -07:00
firmware
gpio gpio/samsung: fix the typo 'exynos5_xxx' instead of 'exonys5_xxx' 2012-06-03 21:21:01 -07:00
gpu drm via: initialize object_idr 2012-06-16 11:18:38 +01:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-05-22 19:22:50 -07:00
hsi
hv Driver core pull for 3.5-rc1 2012-05-22 16:02:13 -07:00
hwmon hwmon/sch56xx: Depend on watchdog for watchdog core functions 2012-05-30 07:56:20 +02:00
hwspinlock
i2c i2c: Add generic I2C multiplexer using pinctrl API 2012-06-04 16:49:43 +02:00
ide drivers/ide/ide-cs.c: adjust suspicious bit operation 2012-06-12 15:51:41 -07:00
idle
ieee802154
iio
infiniband Merge branches 'cxgb4', 'mlx4' and 'ocrdma' into for-linus 2012-06-06 10:08:11 -07:00
input i2c: Split I2C_M_NOSTART support out of I2C_FUNC_PROTOCOL_MANGLING 2012-05-30 10:55:34 +02:00
iommu iommu/amd: Fix deadlock in ppr-handling error path 2012-06-04 12:47:44 +02:00
isdn Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-24 11:54:29 -07:00
leds leds: Make LEDS_ASIC3 and LEDS_RENESAS_TPU depend on LEDS_CLASS=y 2012-06-12 10:56:25 +08:00
lguest
macintosh
md md: 2 fixes for 3.5-rc 2012-06-06 09:49:28 -07:00
media arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
memory
memstick
message Merge branch 'akpm' (Andrew's patch-bomb) 2012-05-31 18:10:18 -07:00
mfd ARM: ux500: Provide regulator support for SMSC911x via Device Tree 2012-06-01 02:04:46 +02:00
misc MFD changes for 3.5 2012-05-29 11:53:11 -07:00
mmc arm-soc: device tree conversions, part 2 2012-05-26 12:57:47 -07:00
mtd UBI: correct ubi_wl_flush locking 2012-06-07 15:22:21 +03:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-06-14 15:33:55 +03:00
nfc NFC: potential integer overflow problem in check_crc() 2012-05-25 11:16:16 -04:00
nubus
of Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-05-29 18:27:19 -07:00
oprofile
parisc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-05-22 19:22:50 -07:00
parport Driver core pull for 3.5-rc1 2012-05-22 16:02:13 -07:00
pci USB: add NO_D3_DURING_SLEEP flag and revert 151b612847 2012-06-13 13:11:39 -07:00
pcmcia
pinctrl pinctrl: pinctrl-mxs: set platform driver data to NULL at errpath and at unregister 2012-06-12 16:26:08 +02:00
platform drivers/platform/x86/acerhdf.c: correct Boris' mail address 2012-06-07 14:43:55 -07:00
pnp
power A bunch of fixes for v3.5, nothing extraordinary. 2012-05-31 12:10:15 -07:00
pps
ps3
ptp Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-05-22 19:22:50 -07:00
rapidio rapidio/tsi721: add DMA engine support 2012-05-31 17:49:31 -07:00
regulator regulator: core: Properly handle the case min_uV < rdev->desc->min_uV in map_voltage_linear 2012-06-08 07:15:55 +08:00
remoteproc IOMMU Updates for Linux 3.5 2012-05-30 08:49:28 -07:00
rpmsg
rtc Merge branches 'bugfix-battery', 'bugfix-misc', 'bugfix-rafael', 'bugfix-turbostat', 'bugfix-video' and 'workaround-pss' into release 2012-06-04 00:48:41 -04:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-05-31 10:51:10 -07:00
sbus
scsi SCSI fixes on 20120614 2012-06-15 17:39:32 -07:00
sfi
sh sh: intc: Kill off special reservation interface. 2012-05-22 19:07:55 +09:00
sn
spi arm-soc: soc specific changes, part 2 2012-05-26 13:05:55 -07:00
ssb
staging Frontswap provides a "transcendent memory" interface for swap pages. 2012-06-04 12:28:45 -07:00
target target: Return error to initiator if SET TARGET PORT GROUPS emulation fails 2012-06-12 20:12:25 -07:00
tc
thermal
tty Five bug-fixes: 2012-06-15 17:17:15 -07:00
uio
usb USB: fix gathering of interface associations 2012-06-14 17:13:34 -07:00
uwb
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-05-16 22:17:37 -04:00
video Small fixes for omapdss driver. Most importantly, fixes a build problem when 2012-06-13 17:57:30 +03:00
virt
virtio virtio-mmio: Devices parameter parsing 2012-05-22 12:16:15 +09:30
vlynq
vme
w1 arm-soc: clock driver changes 2012-05-26 12:42:29 -07:00
watchdog watchdog: iTCO_wdt.c: fix printk format warnings 2012-05-30 08:16:48 +02:00
xen Five bug-fixes: 2012-06-15 17:17:15 -07:00
zorro
Kconfig Staging tree pull request for 3.5-rc1 2012-05-22 16:34:21 -07:00
Makefile arm-soc: driver specific updates 2012-05-26 12:22:27 -07:00