[PATCH 12/13] selftests/fs/mount-notify-ns: Fix build failures seen with -Werror
From: Guenter Roeck <linux@roeck-us.net>
Date: 2025-12-04 16:17:50
Also in:
bpf, linux-kselftest, lkml
Subsystem:
kernel selftest framework, the rest · Maintainers:
Shuah Khan, Linus Torvalds
Fix
mount-notify_test_ns.c: In function ‘fanotify_rmdir’:
mount-notify_test_ns.c:494:17: error:
ignoring return value of ‘chdir’ declared with attribute ‘warn_unused_result’
by checking and then ignoring the return value of chdir().
Fixes: 781091f3f5945 ("selftests/fs/mount-notify: add a test variant running inside userns")
Cc: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
.../selftests/filesystems/mount-notify/mount-notify_test_ns.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c
index 9f57ca46e3af..949c76797f92 100644
--- a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c
+++ b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c@@ -491,7 +491,8 @@ TEST_F(fanotify, rmdir) ASSERT_GE(ret, 0); if (ret == 0) { - chdir("/"); + if (chdir("/")) + ; unshare(CLONE_NEWNS); mount("", "/", NULL, MS_REC|MS_PRIVATE, NULL); umount2("/a", MNT_DETACH);
--
2.43.0