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| author | Kim Phillips <kim.phillips@arm.com> | 2018-08-10 17:45:12 -0500 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-08-14 15:10:44 -0300 |
| commit | 344353366591acf659a0d0dea498611da78d67e2 (patch) | |
| tree | 08b1367b30884d98c2a0ab5e41bf658292c335ac /tools | |
| parent | c9b51a017065bf514ab5a380f2fb3b0dada5bc68 (diff) | |
| download | linux-stable-344353366591acf659a0d0dea498611da78d67e2.tar.gz linux-stable-344353366591acf659a0d0dea498611da78d67e2.tar.bz2 linux-stable-344353366591acf659a0d0dea498611da78d67e2.zip | |
perf arm spe: Fix uninitialized record error variable
The auxtrace init variable 'err' was not being initialized, leading perf
to abort early in an SPE record command when there was no explicit
error, rather only based whatever memory contents were on the stack.
Initialize it explicitly on getting an SPE successfully, the same way
cs-etm does.
Signed-off-by: Kim Phillips <kim.phillips@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Dongjiu Geng <gengdongjiu@huawei.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Fixes: ffd3d18c20b8 ("perf tools: Add ARM Statistical Profiling Extensions (SPE) support")
Link: http://lkml.kernel.org/r/20180810174512.52900813e57cbccf18ce99a2@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/arch/arm64/util/arm-spe.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/arch/arm64/util/arm-spe.c b/tools/perf/arch/arm64/util/arm-spe.c index 1120e39c1b00..5ccfce87e693 100644 --- a/tools/perf/arch/arm64/util/arm-spe.c +++ b/tools/perf/arch/arm64/util/arm-spe.c @@ -194,6 +194,7 @@ struct auxtrace_record *arm_spe_recording_init(int *err, sper->itr.read_finish = arm_spe_read_finish; sper->itr.alignment = 0; + *err = 0; return &sper->itr; } |