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Robin Holt 0b9c55355f x86: uv: xpc NULL deref when mesq becomes empty 
commit 15b87d67ff upstream.

Under heavy load conditions, our set of xpc messages may become exhausted.
 The code handles this correctly with the exception of the management code
which hits a NULL pointer dereference.

Signed-off-by: Robin Holt <holt@sgi.com>
Cc: Jack Steiner <steiner@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-12-09 13:27:15 -08:00
..
c2port c2port: annotate bitfield for kmemcheck 2009-06-15 15:49:34 +02:00
cb710 cb710: use SG_MITER_TO_SG/SG_MITER_FROM_SG 2009-07-31 12:28:46 +02:00
eeprom at24: Use timeout also for read 2009-11-26 09:22:33 +01:00
hdpuftrs hdpuftrs: fix build 2008-10-30 11:38:46 -07:00
ibmasm headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
sgi-gru sgi-gru: decrapfiy options_write() function 2009-11-05 10:48:30 -08:00
sgi-xp x86: uv: xpc NULL deref when mesq becomes empty 2010-12-09 13:27:15 -08:00
atmel-ssc.c atmel-ssc: fix misuse of dev_dbg when requested ssc instance is not found 2009-02-05 12:56:48 -08:00
atmel_pwm.c atmel_pwm: set up only one PWM clock when allocating a clock 2008-07-24 10:47:25 -07:00
atmel_tclib.c atmel_tc library 2008-03-04 13:41:23 +01:00
enclosure.c SCSI: enclosure: fix error path - actually return ERR_PTR() on error 2010-08-10 10:20:44 -07:00
ep93xx_pwm.c ARM: 5628/1: ep93xx: Introduce Pulse Width Modulator (PWM) driver 2009-07-30 17:45:43 +01:00
hpilo.c headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
hpilo.h hpilo: add interrupt handler 2009-09-15 09:50:48 -07:00
ics932s401.c ics932s401: new clock generator chip driver 2008-11-12 17:17:18 -08:00
ioc4.c ioc4: automatically load sgiioc4 subordinate module 2009-01-06 15:59:13 -08:00
isl29003.c isl29003: fix resume functionality 2009-05-06 16:36:10 -07:00
Kconfig ARM: 5628/1: ep93xx: Introduce Pulse Width Modulator (PWM) driver 2009-07-30 17:45:43 +01:00
kgdbts.c kgdbts: Use HW breakpoints with CONFIG_DEBUG_RODATA 2008-05-28 12:49:57 -05:00
lkdtm.c kprobes: use do_IRQ() in lkdtm 2009-09-23 07:39:27 -07:00
Makefile ARM: 5628/1: ep93xx: Introduce Pulse Width Modulator (PWM) driver 2009-07-30 17:45:43 +01:00
phantom.c headers: remove sched.h from interrupt.h 2009-10-11 11:20:58 -07:00
tifm_7xx1.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
tifm_core.c tifm: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:35 -08:00