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| author |   Namhyung Kim <namhyung.kim@lge.com> | 2013-03-21 16:18:48 +0900 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2013-03-21 13:30:52 -0300 |
| commit | 3dce2ce3cc40ece2562a5a83e879b4bfb451476c (patch) | |
| tree | b066d350c037448be3e4b33866caea190f4f00be /tools/perf/util/header.c | |
| parent | perf tools: Get rid of die() calls from trace-event-info.c (diff) | |
| download | linux-dev-3dce2ce3cc40ece2562a5a83e879b4bfb451476c.tar.xz linux-dev-3dce2ce3cc40ece2562a5a83e879b4bfb451476c.zip | |
perf tools: Handle failure case in trace_report()
If pevent allocation in read_trace_init() fails, trace_report() will
return -1 and *ppevent is set to NULL. Its callers should check this
case and handle it properly.
This is also a preparation for the removal of *die() calls.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1363850332-25297-6-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/header.c')
| -rw-r--r-- | tools/perf/util/header.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 79e48c726938..326068a593a5 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -1670,8 +1670,8 @@ static int process_tracing_data(struct perf_file_section *section __maybe_unused struct perf_header *ph __maybe_unused, int fd, void *data) { - trace_report(fd, data, false); - return 0; + ssize_t ret = trace_report(fd, data, false); + return ret < 0 ? -1 : 0; } static int process_build_id(struct perf_file_section *section, @@ -2750,6 +2750,11 @@ static int perf_evsel__prepare_tracepoint_event(struct perf_evsel *evsel, if (evsel->tp_format) return 0; + if (pevent == NULL) { + pr_debug("broken or missing trace data\n"); + return -1; + } + event = pevent_find_event(pevent, evsel->attr.config); if (event == NULL) return -1; |