diff options
| author | Will Deacon <will.deacon@arm.com> | 2012-03-06 17:34:50 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2012-03-07 09:40:49 +0000 |
| commit | f6f5a30c834135c9f2fa10400c59ebbdd9188567 (patch) | |
| tree | 208358216772eedab5998070878db55df5d4e772 /fs/fs-writeback.c | |
| parent | 99c1745b9c76910e195889044f914b4898b7c9a5 (diff) | |
ARM: 7356/1: perf: check that we have an event in the PMU IRQ handlers
The PMU IRQ handlers in perf assume that if a counter has overflowed
then perf must be responsible. In the paranoid world of crazy hardware,
this could be false, so check that we do have a valid event before
attempting to dereference NULL in the interrupt path.
Cc: <stable@vger.kernel.org>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'fs/fs-writeback.c')
0 files changed, 0 insertions, 0 deletions