linux-kernel - [PATCH v2 2/4] perf test: Fix memory leaks on event-times error paths

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Message-Id: <20241001052327.7052-3-irogers@google.com>
Date: Mon, 30 Sep 2024 22:23:25 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, linux-perf-users@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/4] perf test: Fix memory leaks on event-times error paths

These error paths occur without sufficient permissions. Fix the memory
leaks to make leak sanitizer happier.

Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/tests/event-times.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/event-times.c b/tools/perf/tests/event-times.c
index e155f0e0e04d..deefe5003bfc 100644
--- a/tools/perf/tests/event-times.c
+++ b/tools/perf/tests/event-times.c
@@ -126,6 +126,7 @@ static int attach__cpu_disabled(struct evlist *evlist)
 	evsel->core.attr.disabled = 1;
 
 	err = evsel__open_per_cpu(evsel, cpus, -1);
+	perf_cpu_map__put(cpus);
 	if (err) {
 		if (err == -EACCES)
 			return TEST_SKIP;
@@ -134,7 +135,6 @@ static int attach__cpu_disabled(struct evlist *evlist)
 		return err;
 	}
 
-	perf_cpu_map__put(cpus);
 	return evsel__enable(evsel);
 }
 
@@ -153,10 +153,10 @@ static int attach__cpu_enabled(struct evlist *evlist)
 	}
 
 	err = evsel__open_per_cpu(evsel, cpus, -1);
+	perf_cpu_map__put(cpus);
 	if (err == -EACCES)
 		return TEST_SKIP;
 
-	perf_cpu_map__put(cpus);
 	return err ? TEST_FAIL : TEST_OK;
 }
 
@@ -188,6 +188,7 @@ static int test_times(int (attach)(struct evlist *),
 	err = attach(evlist);
 	if (err == TEST_SKIP) {
 		pr_debug("  SKIP  : not enough rights\n");
+		evlist__delete(evlist);
 		return err;
 	}
 
-- 
2.46.1.824.gd892dcdcdd-goog