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Commit 81771974 authored by Robert Richter's avatar Robert Richter
Browse files

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: default avatarRobert Richter <robert.richter@amd.com>
Acked-by: default avatarWill Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: <stable@kernel.org> # .35.x
LKML-Reference: <20100929145225.GJ13563@erda.amd.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent ad0f7cfa

drivers/oprofile/oprofile_perf.c

+1 −0
Original line number Diff line number Diff line
@@ -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;