Messages in this thread Patch in this message | | | Date | Tue, 21 Aug 2012 09:12:36 -0700 | From | tip-bot for Namhyung Kim <> | Subject | [tip:perf/core] perf script: Fix a NULL pointer dereference |
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Commit-ID: d0d3913895e5b50623bd4dafd876e41c1169031d Gitweb: http://git.kernel.org/tip/d0d3913895e5b50623bd4dafd876e41c1169031d Author: Namhyung Kim <namhyung.kim@lge.com> AuthorDate: Tue, 14 Aug 2012 10:57:03 +0900 Committer: Arnaldo Carvalho de Melo <acme@redhat.com> CommitDate: Tue, 14 Aug 2012 10:36:30 -0300
perf script: Fix a NULL pointer dereference
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> --- tools/perf/util/trace-event-parse.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c index 4cb7f38..a5a554e 100644 --- a/tools/perf/util/trace-event-parse.c +++ b/tools/perf/util/trace-event-parse.c @@ -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) {
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