releases/5.13.6/perf-script-release-zstd-data.patch

From c7af91b89950c0fe6ce26ebcdc936fcdb5aba993 Mon Sep 17 00:00:00 2001
From: Sasha Levin <sashal@kernel.org>
Date: Thu, 15 Jul 2021 18:07:17 +0200
Subject: perf script: Release zstd data

From: Riccardo Mancini <rickyman7@gmail.com>

[ Upstream commit 1b1f57cf9e4c8eb16c8f6b2ce12cc5dd3517fc61 ]

ASan reports several memory leak while running:

  # perf test "82: Use vfs_getname probe to get syscall args filenames"

One of the leaks is caused by zstd data not being released on exit in
perf-script.

This patch adds the missing zstd_fini().

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: b13b04d9382113f7 ("perf script: Initialize zstd_data")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/39388e8cc2f85ca219ea18697a17b7bd8f74b693.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/perf/builtin-script.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 1280cbfad4db..8a6656ab835b 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -3991,6 +3991,7 @@ out_delete:
 		zfree(&script.ptime_range);
 	}
 
+	zstd_fini(&(session->zstd_data));
 	evlist__free_stats(session->evlist);
 	perf_session__delete(session);
 
-- 
2.30.2