diff options
| author | Ian Rogers <irogers@google.com> | 2022-01-05 09:13:36 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-01-12 20:28:22 +0300 |
| commit | 80b82f3b65e94ba22d3f12a98f7ecc56cc14c903 (patch) | |
| tree | 9772ac35003c7053d66ee0d5681f3a27fa496c17 /tools/lib/perf | |
| parent | f9551b3f6249cfe8ea5b5f8716675ccf2f6ec737 (diff) | |
| download | linux-80b82f3b65e94ba22d3f12a98f7ecc56cc14c903.tar.xz | |
libperf: Allow NULL in perf_cpu_map__idx()
Return -1, not found, if NULL is passed.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Clarke <pc@us.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: zhengjun.xing@intel.com
Link: https://lore.kernel.org/r/20220105061351.120843-34-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/perf')
| -rw-r--r-- | tools/lib/perf/cpumap.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/tools/lib/perf/cpumap.c b/tools/lib/perf/cpumap.c index 3c36a06771af..eacea3ab965a 100644 --- a/tools/lib/perf/cpumap.c +++ b/tools/lib/perf/cpumap.c @@ -270,8 +270,13 @@ bool perf_cpu_map__empty(const struct perf_cpu_map *map) int perf_cpu_map__idx(const struct perf_cpu_map *cpus, int cpu) { - int low = 0, high = cpus->nr; + int low, high; + if (!cpus) + return -1; + + low = 0; + high = cpus->nr; while (low < high) { int idx = (low + high) / 2, cpu_at_idx = cpus->map[idx]; |