linux-kernel - [PATCH 1/2] perf report: delete evlist when deleting session

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Date:   Tue, 22 Jun 2021 01:43:17 +0200
From:   Riccardo Mancini <rickyman7@...il.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Namhyung Kim <namhyung@...nel.org>,
        Ian Rogers <irogers@...gle.com>,
        Riccardo Mancini <rickyman7@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>, linux-perf-users@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] perf report: delete evlist when deleting session

ASan reports a memory leak related to session->evlist never being deleted.
The evlist member is not deleted in perf_session__delete, so it should be
deleted separately.
This patch adds the missing deletion in perf-report.

Signed-off-by: Riccardo Mancini <rickyman7@...il.com>
---
 tools/perf/builtin-report.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 36f9ccfeb38a..07d7693d44b8 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -1618,6 +1618,7 @@ int cmd_report(int argc, const char **argv)
 
 	ret = __cmd_report(&report);
 	if (ret == K_SWITCH_INPUT_DATA || ret == K_RELOAD) {
+		evlist__delete(session->evlist);
 		perf_session__delete(session);
 		last_key = K_SWITCH_INPUT_DATA;
 		goto repeat;
@@ -1637,6 +1638,7 @@ int cmd_report(int argc, const char **argv)
 	}
 
 	zstd_fini(&(session->zstd_data));
+	evlist__delete(session->evlist);
 	perf_session__delete(session);
 	return ret;
 }
-- 
2.31.1