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| author |   Ian Rogers <irogers@google.com> | 2025-05-27 14:50:35 -0700 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2025-05-28 10:12:47 -0300 |
| commit | 2a2a7f5e7deffa363b438308812989ded126a48a (patch) | |
| tree | b05be6ca65f6d687d676c55b1663dd536a6c0ffd /tools/perf | |
| parent | perf machine: Factor creating a "live" machine out of dwarf-unwind (diff) | |
| download | linux-rng-2a2a7f5e7deffa363b438308812989ded126a48a.tar.xz linux-rng-2a2a7f5e7deffa363b438308812989ded126a48a.zip | |
perf pmu: Avoid segv for missing name/alias_name in wildcarding
The pmu name or alias_name fields may be NULL and should be skipped if
so. This is done in all loops of perf_pmu___name_match except the
final wildcard loop which was an oversight.
Fixes: 63e287131cf0c59b ("perf pmu: Rename name matching for no suffix or wildcard variants")
Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250527215035.187992-1-irogers@google.com
[ Fixup the Fixes: tag to the right commit ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/util/pmu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c index bc1178234d3b..609828513f6c 100644 --- a/tools/perf/util/pmu.c +++ b/tools/perf/util/pmu.c @@ -2143,6 +2143,9 @@ static bool perf_pmu___name_match(const struct perf_pmu *pmu, const char *to_mat for (size_t i = 0; i < ARRAY_SIZE(names); i++) { const char *name = names[i]; + if (!name) + continue; + if (wildcard && perf_pmu__match_wildcard_uncore(name, to_match)) return true; if (!wildcard && perf_pmu__match_ignoring_suffix_uncore(name, to_match)) |