linux-kernel - [tip:perf/urgent] perf tests x86: Fix memory leak in sample

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Message-ID: <tip-763d7f5f2718f085bab5a9e63308349728f3ad12@git.kernel.org>
Date:	Wed, 23 Apr 2014 06:13:24 -0700
From:	tip-bot for Masanari Iida <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	tglx@...utronix.de, standby24x7@...il.com, jolsa@...hat.com
Subject: [tip:perf/urgent] perf tests x86:
  Fix memory leak in sample_ustack()

Commit-ID:  763d7f5f2718f085bab5a9e63308349728f3ad12
Gitweb:     http://git.kernel.org/tip/763d7f5f2718f085bab5a9e63308349728f3ad12
Author:     Masanari Iida <standby24x7@...il.com>
AuthorDate: Sun, 20 Apr 2014 00:16:41 +0900
Committer:  Jiri Olsa <jolsa@...hat.com>
CommitDate: Wed, 23 Apr 2014 13:19:01 +0200

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@...il.com>
Link: http://lkml.kernel.org/r/1398091024-7901-1-git-send-email-standby24x7@gmail.com
Signed-off-by: Jiri Olsa <jolsa@...hat.com>
---
 tools/perf/arch/x86/tests/dwarf-unwind.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c
index b602ad9..b8c0102 100644
--- 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;
 	}
 
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