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perf script: Fix a NULL pointer dereference

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If 'perf script --gen-script' was called with a perf.data which contains
no tracepoint event, it'd segfault due to NULL pevent pointer. Fix it.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Feng Tang <feng.tang@intel.com>
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/1344909423-26384-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2012-08-14 10:57:03 +09:00 committed by Arnaldo Carvalho de Melo
parent 0fe7d7e976
commit d0d3913895
1 changed files with 1 additions and 1 deletions
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2
tools/perf/util/trace-event-parse.c
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@ -293,7 +293,7 @@ struct event_format *trace_find_next_event(struct pevent *pevent,
{
static int idx;
if (!pevent->events)
if (!pevent || !pevent->events)
return NULL;
if (!event) {