[PATCH 4.14 46/82] perf test bpf: Free obj_buf

From: Greg Kroah-Hartman
Date: Mon Jul 26 2021 - 11:51:49 EST

From: Riccardo Mancini <rickyman7@xxxxxxxxx>

[ Upstream commit 937654ce497fb6e977a8c52baee5f7d9616302d9 ]

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

This patch adds the missing free.

Signed-off-by: Riccardo Mancini <rickyman7@xxxxxxxxx>
Fixes: ba1fae431e74bb42 ("perf test: Add 'perf test BPF'")
Cc: Ian Rogers <irogers@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Link: http://lore.kernel.org/lkml/60f3ca935fe6672e7e866276ce6264c9e26e4c87.1626343282.git.rickyman7@xxxxxxxxx
[ Added missing stdlib.h include ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
tools/perf/tests/bpf.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/tools/perf/tests/bpf.c b/tools/perf/tests/bpf.c
index 34c22cdf4d5d..3fc7fd779c27 100644
--- a/tools/perf/tests/bpf.c
+++ b/tools/perf/tests/bpf.c
@@ -1,5 +1,6 @@
#include <errno.h>
#include <stdio.h>
+#include <stdlib.h>
#include <sys/epoll.h>
#include <sys/types.h>
#include <sys/stat.h>
@@ -275,6 +276,7 @@ static int __test__bpf(int idx)

+ free(obj_buf);
return ret;