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Subject[PATCH V8 4/7] perf,tools: fix dump_sample crash when evsel is NULL.
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From: Kan Liang <kan.liang@intel.com>

Need to check evsel before using in dump_sample.

Signed-off-by: Kan Liang <kan.liang@intel.com>
---
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;
--
1.8.3.1


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