From: Ian Rogers <irog...@google.com>

[ Upstream commit d4953f7ef1a2e87ef732823af35361404d13fea8 ]

Reproducible with a clang asan build and then running perf test in
particular 'Parse event definition strings'.

Signed-off-by: Ian Rogers <irog...@google.com>
Acked-by: Jiri Olsa <jo...@redhat.com>
Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
Cc: Andi Kleen <a...@linux.intel.com>
Cc: Leo Yan <leo....@linaro.org>
Cc: Mark Rutland <mark.rutl...@arm.com>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Stephane Eranian <eran...@google.com>
Cc: clang-built-li...@googlegroups.com
Link: http://lore.kernel.org/lkml/20200314170356.62914-1-irog...@google.com
Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 tools/perf/util/evsel.c        | 1 +
 tools/perf/util/parse-events.c | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 4fad92213609f..68c5ab0e1800b 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1290,6 +1290,7 @@ void perf_evsel__exit(struct perf_evsel *evsel)
        thread_map__put(evsel->threads);
        zfree(&evsel->group_name);
        zfree(&evsel->name);
+       zfree(&evsel->pmu_name);
        perf_evsel__object.fini(evsel);
 }
 
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 95043cae57740..6d087d9acd5ee 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1261,7 +1261,7 @@ int parse_events_add_pmu(struct parse_events_state 
*parse_state,
                attr.type = pmu->type;
                evsel = __add_event(list, &parse_state->idx, &attr, NULL, pmu, 
NULL, auto_merge_stats);
                if (evsel) {
-                       evsel->pmu_name = name;
+                       evsel->pmu_name = name ? strdup(name) : NULL;
                        evsel->use_uncore_alias = use_uncore_alias;
                        return 0;
                } else {
@@ -1302,7 +1302,7 @@ int parse_events_add_pmu(struct parse_events_state 
*parse_state,
                evsel->snapshot = info.snapshot;
                evsel->metric_expr = info.metric_expr;
                evsel->metric_name = info.metric_name;
-               evsel->pmu_name = name;
+               evsel->pmu_name = name ? strdup(name) : NULL;
                evsel->use_uncore_alias = use_uncore_alias;
        }
 
-- 
2.25.1



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