[PATCH AUTOSEL 5.15 11/41] selftests: vm: Fix resource leak when return error

[Sasha Levin]

From: Ding Xiang <dingxiang@xxxxxxxxxxxxxxxxxxxx>

[ Upstream commit 3084a4ec7f9bb1ec90036cfd01b1abadc5dd4fb2 ]

When return on an error path, file handle need to be closed
to prevent resource leak

Signed-off-by: Ding Xiang <dingxiang@xxxxxxxxxxxxxxxxxxxx>
Reviewed-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 tools/testing/selftests/vm/ksm_tests.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/vm/ksm_tests.c b/tools/testing/selftests/vm/ksm_tests.c
index b61dcdb44c5b..b31f7a17d92a 100644
--- a/tools/testing/selftests/vm/ksm_tests.c
+++ b/tools/testing/selftests/vm/ksm_tests.c
@@ -48,6 +48,7 @@ static int ksm_write_sysfs(const char *file_path, unsigned long val)
 	}
 	if (fprintf(f, "%lu", val) < 0) {
 		perror("fprintf");
+		fclose(f);
 		return 1;
 	}
 	fclose(f);
@@ -66,6 +67,7 @@ static int ksm_read_sysfs(const char *file_path, unsigned long *val)
 	}
 	if (fscanf(f, "%lu", val) != 1) {
 		perror("fscanf");
+		fclose(f);
 		return 1;
 	}
 	fclose(f);
-- 
2.35.1