Eric Lee / linux-smarc-t335x-v3.2

Download as
Browse Code ยป

Commit 81771974ae49bf79aab60c42eac7a6d730a9ef2b

Authored by Robert Richter
1 parent ad0f7cfaa8
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

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 <robert.richter@amd.com>
Acked-by: Will 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: Ingo Molnar <mingo@elte.hu>

Showing 1 changed file with 1 additions and 0 deletions Side-by-side Diff

drivers/oprofile/oprofile_perf.c
Diff comments   View file @ 8177197
... ... @@ -84,6 +84,7 @@
84 84 if (IS_ERR(pevent)) {
85 85 ret = PTR_ERR(pevent);
86 86 } else if (pevent->state != PERF_EVENT_STATE_ACTIVE) {
  87 + perf_event_release_kernel(pevent);
87 88 pr_warning("oprofile: failed to enable event %d "
88 89 "on CPU %d\n", event, cpu);
89 90 ret = -EBUSY;