From: Riccardo Mancini <rickyman7@gmail.com>
Date: Thu, 15 Jul 2021 16:07:24 +0000 (+0200)
Subject: perf test bpf: Free obj_buf
X-Git-Tag: v5.4.135~2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c72374978b3fb46e620793a8fcba901a9cef7b7e;p=thirdparty%2Fkernel%2Fstable.git

perf test bpf: Free obj_buf

commit 937654ce497fb6e977a8c52baee5f7d9616302d9 upstream.

ASan reports some memory leaks when running:

  # perf test "42: BPF filter"

The first of these leaks is caused by obj_buf never being deallocated in
__test__bpf.

This patch adds the missing free.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: ba1fae431e74bb42 ("perf test: Add 'perf test BPF'")
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>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lore.kernel.org/lkml/60f3ca935fe6672e7e866276ce6264c9e26e4c87.1626343282.git.rickyman7@gmail.com
[ Added missing stdlib.h include ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/tools/perf/tests/bpf.c b/tools/perf/tests/bpf.c
index 1eb0bffaed6cd..8669bb85e7c7f 100644
--- a/tools/perf/tests/bpf.c
+++ b/tools/perf/tests/bpf.c
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <sys/epoll.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -282,6 +283,7 @@ static int __test__bpf(int idx)
 	}
 
 out:
+	free(obj_buf);
 	bpf__clear();
 	return ret;
 }