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From: Miaoqian Lin <linmq006@gmail.com>
To: Michael Ellerman <mpe@ellerman.id.au>,
	Nicholas Piggin <npiggin@gmail.com>,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	Shuah Khan <shuah@kernel.org>, Miaoqian Lin <linmq006@gmail.com>,
	Anshuman Khandual <khandual@linux.vnet.ibm.com>,
	linuxppc-dev@lists.ozlabs.org, linux-kselftest@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] selftests/powerpc: Fix resource leaks
Date: Mon,  5 Dec 2022 12:44:27 +0400	[thread overview]
Message-ID: <20221205084429.570654-1-linmq006@gmail.com> (raw)

In check_all_cpu_dscr_defaults, opendir() opens the directory stream.
Add missing closedir() in the error path to release it.

In check_cpu_dscr_default, open() creates an open file descriptor.
Add missing close() in the error path to release it.

Fixes: ebd5858c904b ("selftests/powerpc: Add test for all DSCR sysfs interfaces")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
---
 tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c b/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c
index fbbdffdb2e5d..f20d1c166d1e 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c
@@ -24,6 +24,7 @@ static int check_cpu_dscr_default(char *file, unsigned long val)
 	rc = read(fd, buf, sizeof(buf));
 	if (rc == -1) {
 		perror("read() failed");
+		close(fd);
 		return 1;
 	}
 	close(fd);
@@ -65,8 +66,10 @@ static int check_all_cpu_dscr_defaults(unsigned long val)
 		if (access(file, F_OK))
 			continue;
 
-		if (check_cpu_dscr_default(file, val))
+		if (check_cpu_dscr_default(file, val)) {
+			closedir(sysfs);
 			return 1;
+		}
 	}
 	closedir(sysfs);
 	return 0;
-- 
2.25.1


             reply	other threads:[~2022-12-05  8:45 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-05  8:44 Miaoqian Lin [this message]
2022-12-08 12:40 ` [PATCH] selftests/powerpc: Fix resource leaks Michael Ellerman

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