From: Amer Al Shanawany <amer.shanawany@gmail.com>
To: Shuah Khan <shuah@kernel.org>,
Christian Brauner <brauner@kernel.org>,
Miklos Szeredi <mszeredi@redhat.com>,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Subject: [PATCH] selftests: filesystems: fix warn_unused_result build warnings
Date: Wed, 17 Apr 2024 20:49:13 +0200 [thread overview]
Message-ID: <20240417184913.74734-1-amer.shanawany@gmail.com> (raw)
Fix the following warnings by adding return check and error messages.
statmount_test.c: In function ‘cleanup_namespace’:
statmount_test.c:128:9: warning: ignoring return value of ‘fchdir’
declared with attribute ‘warn_unused_result’ [-Wunused-result]
128 | fchdir(orig_root);
| ^~~~~~~~~~~~~~~~~
statmount_test.c:129:9: warning: ignoring return value of ‘chroot’
declared with attribute ‘warn_unused_result’ [-Wunused-result]
129 | chroot(".");
| ^~~~~~~~~~~
Signed-off-by: Amer Al Shanawany <amer.shanawany@gmail.com>
---
.../selftests/filesystems/statmount/statmount_test.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/filesystems/statmount/statmount_test.c b/tools/testing/selftests/filesystems/statmount/statmount_test.c
index e6d7c4f1c85b..e8c019d72cbf 100644
--- a/tools/testing/selftests/filesystems/statmount/statmount_test.c
+++ b/tools/testing/selftests/filesystems/statmount/statmount_test.c
@@ -125,8 +125,16 @@ static uint32_t old_root_id, old_parent_id;
static void cleanup_namespace(void)
{
- fchdir(orig_root);
- chroot(".");
+ int ret;
+
+ ret = fchdir(orig_root);
+ if (ret == -1)
+ ksft_perror("fchdir to original root");
+
+ ret = chroot(".");
+ if (ret == -1)
+ ksft_perror("chroot to original root");
+
umount2(root_mntpoint, MNT_DETACH);
rmdir(root_mntpoint);
}
--
2.34.1
next reply other threads:[~2024-04-17 18:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-17 18:49 Amer Al Shanawany [this message]
2024-04-19 16:41 ` [PATCH] selftests: filesystems: fix warn_unused_result build warnings Muhammad Usama Anjum
2024-05-04 17:17 ` Amer Al Shanawany
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