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 <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Jiri Olsa <[email protected]>
AnTAVR · Apr 23, 2014 · 763d7f5 · 763d7f5
1 parent fd741ed
commit 763d7f5
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c
@@ -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;
 	}