From 81771974ae49bf79aab60c42eac7a6d730a9ef2b Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Wed, 29 Sep 2010 16:52:25 +0200 Subject: oprofile, ARM: Release resources on failure This patch fixes a resource leak on failure, where the oprofilefs and some counters may not released properly. Signed-off-by: Robert Richter Acked-by: Will Deacon Cc: linux-arm-kernel@lists.infradead.org Cc: # .35.x LKML-Reference: <20100929145225.GJ13563@erda.amd.com> Signed-off-by: Ingo Molnar --- drivers/oprofile/oprofile_perf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/oprofile/oprofile_perf.c b/drivers/oprofile/oprofile_perf.c index ebb40cb8747..f3d3df229a4 100644 --- a/drivers/oprofile/oprofile_perf.c +++ b/drivers/oprofile/oprofile_perf.c @@ -84,6 +84,7 @@ static int op_create_counter(int cpu, int event) if (IS_ERR(pevent)) { ret = PTR_ERR(pevent); } else if (pevent->state != PERF_EVENT_STATE_ACTIVE) { + perf_event_release_kernel(pevent); pr_warning("oprofile: failed to enable event %d " "on CPU %d\n", event, cpu); ret = -EBUSY; -- cgit v1.2.3