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| author | Adrian Hunter <adrian.hunter@intel.com> | 2021-12-10 18:23:01 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-12-11 08:19:47 -0300 |
| commit | a32e6c5da599dbf49e60622a4dfb5b9b40ece029 (patch) | |
| tree | b2ed1bc581a74f6304d3688fc94155aed3355547 /tools/perf/util | |
| parent | c79ee2b2160909889df67c8801352d3e69d43a1a (diff) | |
| download | linux-a32e6c5da599dbf49e60622a4dfb5b9b40ece029.tar.bz2 | |
perf intel-pt: Fix next 'err' value, walking trace
Code after label 'next:' in intel_pt_walk_trace() assumes 'err' is zero,
but it may not be, if arrived at via a 'goto'. Ensure it is zero.
Fixes: 7c1b16ba0e26e6 ("perf intel-pt: Add support for decoding FUP/TIP only")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: stable@vger.kernel.org # v5.15+
Link: https://lore.kernel.org/r/20211210162303.2288710-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index 845b0ca866a4..75b504aed7f4 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -2942,6 +2942,7 @@ static int intel_pt_walk_trace(struct intel_pt_decoder *decoder) if (err) return err; next: + err = 0; if (decoder->cyc_threshold) { if (decoder->sample_cyc && last_packet_type != INTEL_PT_CYC) decoder->sample_cyc = false; |