linux-kernel - [PATCH 2/7] perf header: Set tracepoint event name only if not set

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Message-Id: <1346821373-31621-3-git-send-email-namhyung@kernel.org>
Date:	Wed,  5 Sep 2012 14:02:48 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Namhyung Kim <namhyung.kim@....com>
Subject: [PATCH 2/7] perf header: Set tracepoint event name only if not set

From: Namhyung Kim <namhyung.kim@....com>

The event name can be set already by processing a event_desc data.
So check it before setting to prevent possible leak.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/util/header.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index a124b9328170..05c9310c3da1 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2314,7 +2314,7 @@ static int perf_evlist__set_tracepoint_names(struct perf_evlist *evlist,
 	struct perf_evsel *pos;
 
 	list_for_each_entry(pos, &evlist->entries, node) {
-		if (pos->attr.type == PERF_TYPE_TRACEPOINT &&
+		if (pos->attr.type == PERF_TYPE_TRACEPOINT && !pos->name &&
 		    perf_evsel__set_tracepoint_name(pos, pevent))
 			return -1;
 	}
-- 
1.7.11.4

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