On 6/10/24 14:09, Abhinav Jain wrote:
Add ksft_exit_fail_msg() return value checks for fchdir() & chroot() to address the selftests statmount test compile warnings statmount_test.c:127:2: warning: ignoring return value of ‘fchdir’, declared with attribute warn_unused_result [-Wunused-result] 127 | fchdir(orig_root); | ^~~~~~~~~~~~~~~~~ statmount_test.c:128:2: warning: ignoring return value of ‘chroot’, declared with attribute warn_unused_result [-Wunused-result] 128 | chroot("."); | ^~~~~~~~~~~ Signed-off-by: Abhinav Jain <jain.abhinav177@xxxxxxxxx> --- .../filesystems/statmount/statmount_test.c | 13 +++++++++++-- 1 file changed, 11 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..b5e1247233b6 100644 --- a/tools/testing/selftests/filesystems/statmount/statmount_test.c +++ b/tools/testing/selftests/filesystems/statmount/statmount_test.c @@ -125,8 +125,17 @@ 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_exit_fail_msg("changing current directory: %s\n", + strerror(errno)); + + ret = chroot("."); + if (ret == -1) + ksft_exit_fail_msg("chroot: %s\n", strerror(errno)); + umount2(root_mntpoint, MNT_DETACH); rmdir(root_mntpoint); }
There is another prior patch that fixes the problem https://patchwork.kernel.org/project/linux-kselftest/patch/20240417184913.74734-1-amer.shanawany@xxxxxxxxx/ thanks, -- Shuah
