linux-kernel - [PATCH 11/20] perf session: cleanup trace

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Message-Id: <fa2a3f221d90e47ce4e5b7e2d6e64c3509ddc96a.1626343282.git.rickyman7@gmail.com>
Date:   Thu, 15 Jul 2021 18:07:16 +0200
From:   Riccardo Mancini <rickyman7@...il.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Ian Rogers <irogers@...gle.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Jiri Olsa <jolsa@...hat.com>, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org,
        Riccardo Mancini <rickyman7@...il.com>
Subject: [PATCH 11/20] perf session: cleanup trace_event

ASan reports several memory leaks when running the perf test
"82: Use vfs_getname probe to get syscall args filenames", many of which
are related to session->tevent.
This patch will solve this problem, then next patch will fix the remaining
memory leaks in perf-script.
This bug is due to a missing deallocation of the trace_event data
strutures.

This patch adds the missing trace_event__cleanup in
perf_session__delete.

Signed-off-by: Riccardo Mancini <rickyman7@...il.com>
---
 tools/perf/util/session.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index e9c929a39973ace9..51f72740291267c5 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -306,6 +306,7 @@ void perf_session__delete(struct perf_session *session)
 			evlist__delete(session->evlist);
 		perf_data__close(session->data);
 	}
+	trace_event__cleanup(&session->tevent);
 	free(session);
 }
 
-- 
2.31.1