path: root/mm
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authorJosh Hunt <johunt@akamai.com>2011-06-27 16:18:08 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-06-27 18:00:13 -0700
commitaa2c96d6f329e66cc59352b0f12e8f04e6a9593b (patch)
tree0d7db978da167df605b14d4880969b39caf5e0f4 /mm
parent507c5f1224014f9956e604ee8703b3bbea7da4a4 (diff)
drivers/misc/lkdtm.c: fix race when crashpoint is hit multiple times before checking count
We observed the crash point count going negative in cases where the crash point is hit multiple times before the check of "count == 0" is done. Because of this we never call lkdtm_do_action(). This patch just adds a spinlock to protect count. Reported-by: Tapan Dhimant <tdhimant@akamai.com> Signed-off-by: Josh Hunt <johunt@akamai.com> Acked-by: Ankita Garg <ankita@in.ibm.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions

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