We missed storing the error which triggerd smatch warning: fs/ext4/extents.c:3369 ext4_split_extent_zeroout() warn: duplicate zero check 'err' (previous on line 3363) fs/ext4/extents.c 3361 3362 err = ext4_ext_get_access(handle, inode, path + depth); 3363 if (err) 3364 return err; 3365 3366 ext4_ext_mark_initialized(ex); 3367 3368 ext4_ext_dirty(handle, inode, path + depth); --> 3369 if (err) 3370 return err; 3371 3372 return 0; 3373 } Fix it by correctly storing the err value from ext4_ext_dirty(). Link: https://lore.kernel.org/all/aYXvVgPnKltX79KE@stanley.mountain/ Reported-by: Dan Carpenter Signed-off-by: Ojaswin Mujoo --- fs/ext4/extents.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 3630b27e4fd7..5579e0e68c0f 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3365,7 +3365,7 @@ static int ext4_split_extent_zeroout(handle_t *handle, struct inode *inode, ext4_ext_mark_initialized(ex); - ext4_ext_dirty(handle, inode, path + depth); + err = ext4_ext_dirty(handle, inode, path + depth); if (err) return err; -- 2.52.0