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authorNeilBrown <neilb@suse.de>2012-08-01 20:40:02 +1000
committerNeilBrown <neilb@suse.de>2012-08-01 20:40:02 +1000
commitbb181e2e48f8c85db08c9cb015cbba9618dbf05c (patch)
tree191bc24dd97bcb174535cc217af082f16da3b43d /arch/powerpc/kernel/hw_breakpoint.c
parentd57368afe63b3b7b45ce6c2b8c5276417935be2f (diff)
parentc039c332f23e794deb6d6f37b9f07ff3b27fb2cf (diff)
Merge commit 'c039c332f23e794deb6d6f37b9f07ff3b27fb2cf' into md
Pull in pre-requisites for adding raid10 support to dm-raid.
Diffstat (limited to 'arch/powerpc/kernel/hw_breakpoint.c')
-rw-r--r--arch/powerpc/kernel/hw_breakpoint.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/hw_breakpoint.c b/arch/powerpc/kernel/hw_breakpoint.c
index 2bc0584be81..f3a82dde61d 100644
--- a/arch/powerpc/kernel/hw_breakpoint.c
+++ b/arch/powerpc/kernel/hw_breakpoint.c
@@ -111,7 +111,7 @@ void arch_unregister_hw_breakpoint(struct perf_event *bp)
* and the single_step_dabr_instruction(), then cleanup the breakpoint
* restoration variables to prevent dangling pointers.
*/
- if (bp->ctx->task)
+ if (bp->ctx && bp->ctx->task)
bp->ctx->task->thread.last_hit_ubp = NULL;
}