linux-kernel - [PATCH] selftests/efivarfs: create-read: fix a resource leak

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Message-Id: <20231018015921.16890-1-zhujun2@cmss.chinamobile.com>
Date:   Tue, 17 Oct 2023 18:59:21 -0700
From:   zhujun2 <zhujun2@...s.chinamobile.com>
To:     skhan@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        shuah@...nel.org, zhujun2@...s.chinamobile.com
Subject: [PATCH] selftests/efivarfs: create-read: fix a resource leak

The opened file should be closed in main(), otherwise resource
leak will occur that this problem was discovered by code reading

Signed-off-by: zhujun2 <zhujun2@...s.chinamobile.com>
---
 tools/testing/selftests/efivarfs/create-read.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/testing/selftests/efivarfs/create-read.c b/tools/testing/selftests/efivarfs/create-read.c
index 9674a1939..7bc7af4eb 100644
--- a/tools/testing/selftests/efivarfs/create-read.c
+++ b/tools/testing/selftests/efivarfs/create-read.c
@@ -32,8 +32,10 @@ int main(int argc, char **argv)
 	rc = read(fd, buf, sizeof(buf));
 	if (rc != 0) {
 		fprintf(stderr, "Reading a new var should return EOF\n");
+		close(fd);
 		return EXIT_FAILURE;
 	}
 
+	close(fd);
 	return EXIT_SUCCESS;
 }
-- 
2.17.1