[tip:perf/core] perf session: Don't call dump_sample() when evsel is NULL

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Commit-ID:  1b29ac59b1d692c06ec543a5f35e0d9ebb98e003
Gitweb:     http://git.kernel.org/tip/1b29ac59b1d692c06ec543a5f35e0d9ebb98e003
Author:     Kan Liang <kan.liang@xxxxxxxxx>
AuthorDate: Thu, 3 Sep 2015 08:31:00 -0400
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Fri, 4 Sep 2015 12:01:04 -0300

perf session: Don't call dump_sample() when evsel is NULL

Need to check evsel before passing it to dump_sample().

Signed-off-by: Kan Liang <kan.liang@xxxxxxxxx>
Cc: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1441283463-51050-5-git-send-email-kan.liang@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/session.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 61669be..23fed17 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1080,11 +1080,11 @@ static int machines__deliver_event(struct machines *machines,
 
 	switch (event->header.type) {
 	case PERF_RECORD_SAMPLE:
-		dump_sample(evsel, event, sample);
 		if (evsel == NULL) {
 			++evlist->stats.nr_unknown_id;
 			return 0;
 		}
+		dump_sample(evsel, event, sample);
 		if (machine == NULL) {
 			++evlist->stats.nr_unprocessable_samples;
 			return 0;
--
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