[tip:perf/core] perf header: Set tracepoint event name only if not set

[tip-bot for Namhyung Kim <namhyung.kim@lge.com>]

Commit-ID:  618a3f1d30ea0ee2ff3a88661b8d6a4035123211
Gitweb:     http://git.kernel.org/tip/618a3f1d30ea0ee2ff3a88661b8d6a4035123211
Author:     Namhyung Kim <namhyung.kim@lge.com>
AuthorDate: Wed, 5 Sep 2012 14:02:48 +0900
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Wed, 5 Sep 2012 17:46:34 -0300

perf header: Set tracepoint event name only if not set

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@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1346821373-31621-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/header.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index a124b93..05c9310 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;
 	}