Commit-ID: ffb4ef21ac4308c2e738e6f83b6741bbc9b4fa3b Gitweb: http://git.kernel.org/tip/ffb4ef21ac4308c2e738e6f83b6741bbc9b4fa3b Author: Peter Zijlstra <pet...@infradead.org> AuthorDate: Mon, 5 May 2014 19:12:20 +0200 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Wed, 7 May 2014 11:33:15 +0200
perf: Fix perf_event_init_context() perf_pin_task_context() can return NULL but perf_event_init_context() assumes it will not, correct this. Reported-by: Vince Weaver <vincent.wea...@maine.edu> Signed-off-by: Peter Zijlstra <pet...@infradead.org> Cc: Arnaldo Carvalho de Melo <a...@kernel.org> Link: http://lkml.kernel.org/r/20140505171428.gu26...@laptop.programming.kicks-ass.net Signed-off-by: Ingo Molnar <mi...@kernel.org> --- kernel/events/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/events/core.c b/kernel/events/core.c index ea899e2..7123284 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -7729,6 +7729,8 @@ int perf_event_init_context(struct task_struct *child, int ctxn) * swapped under us. */ parent_ctx = perf_pin_task_context(parent, ctxn); + if (!parent_ctx) + return 0; /* * No need to check if parent_ctx != NULL here; since we saw -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
