btrfs: return the actual error value from from btrfs_uuid_tree_iterate
authorPan Bian <bianpan2016@163.com>
Sun, 4 Dec 2016 04:51:53 +0000 (12:51 +0800)
committerDavid Sterba <dsterba@suse.com>
Mon, 19 Dec 2016 17:08:15 +0000 (18:08 +0100)
commit73ba39ab9307340dc98ec3622891314bbc09cc2e
tree5e4676e471c37f27091f3b2f7f37667e0f905d6c
parent2939e1a86f758b55cdba73e29397dd3d94df13bc
btrfs: return the actual error value from  from btrfs_uuid_tree_iterate

In function btrfs_uuid_tree_iterate(), errno is assigned to variable ret
on errors. However, it directly returns 0. It may be better to return
ret. This patch also removes the warning, because the caller already
prints a warning.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188731
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
[ edited subject ]
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/uuid-tree.c