From: Riccardo Mancini <rickyman7@gmail.com>
Date: Thu, 15 Jul 2021 16:07:16 +0000 (+0200)
Subject: perf session: Cleanup trace_event
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=423b9174f5f71fd3d245f4da0feaf958976f66e7;p=linux.git

perf session: Cleanup trace_event

ASan reports several memory leaks when running:

  # 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@gmail.com>
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/fa2a3f221d90e47ce4e5b7e2d6e64c3509ddc96a.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index e9c929a39973a..51f7274029126 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);
 }