| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.13 055/223] perf test event_update: Fix memory leak of unit | Date | Mon, 26 Jul 2021 17:37:27 +0200 |
| |
From: Riccardo Mancini <rickyman7@gmail.com>
[ Upstream commit dccfca926c351ba0893af4c8b481477bdb2881a4 ]
ASan reports a memory leak while running:
# perf test "49: Synthesize attr update"
Caused by a string being duplicated but never freed.
This patch adds the missing free().
Note that evsel->unit is not deallocated together with evsel since it is supposed to be a constant string.
Signed-off-by: Riccardo Mancini <rickyman7@gmail.com> Fixes: a6e5281780d1da65 ("perf tools: Add event_update event unit type") Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/1fbc8158663fb0d4d5392e36bae564f6ad60be3c.1626343282.git.rickyman7@gmail.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- tools/perf/tests/event_update.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/perf/tests/event_update.c b/tools/perf/tests/event_update.c index 932ab0740d11..44a50527f9d9 100644 --- a/tools/perf/tests/event_update.c +++ b/tools/perf/tests/event_update.c @@ -88,6 +88,7 @@ int test__event_update(struct test *test __maybe_unused, int subtest __maybe_unu struct evsel *evsel; struct event_name tmp; struct evlist *evlist = evlist__new_default(); + char *unit = strdup("KRAVA"); TEST_ASSERT_VAL("failed to get evlist", evlist); @@ -98,7 +99,7 @@ int test__event_update(struct test *test __maybe_unused, int subtest __maybe_unu perf_evlist__id_add(&evlist->core, &evsel->core, 0, 0, 123); - evsel->unit = strdup("KRAVA"); + evsel->unit = unit; TEST_ASSERT_VAL("failed to synthesize attr update unit", !perf_event__synthesize_event_update_unit(NULL, evsel, process_event_unit)); @@ -118,6 +119,7 @@ int test__event_update(struct test *test __maybe_unused, int subtest __maybe_unu TEST_ASSERT_VAL("failed to synthesize attr update cpus", !perf_event__synthesize_event_update_cpus(&tmp.tool, evsel, process_event_cpus)); + free(unit); evlist__delete(evlist); return 0; } -- 2.30.2
|