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perf tests x86: Fix memory leak in sample_ustack() 

The buf is not freed, when kernel failed to get stack map
and return.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Link: http://lkml.kernel.org/r/1398091024-7901-1-git-send-email-standby24x7@gmail.com
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
This commit is contained in:
Masanari Iida 2014-04-20 00:16:41 +09:00 committed by Jiri Olsa
parent fd741edc25
commit 763d7f5f27
1 changed files with 1 additions and 0 deletions
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1
tools/perf/arch/x86/tests/dwarf-unwind.c
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@ -26,6 +26,7 @@ static int sample_ustack(struct perf_sample *sample,
map = map_groups__find(&thread->mg, MAP__FUNCTION, (u64) sp);
if (!map) {
pr_debug("failed to get stack map\n");
free(buf);
return -1;
}