Btrfs: remove reduplicate check about root in the function btrfs_clean_quota_tree

The check work has been done just before the function btrfs_clean_quota_tree
is called, it is not necessary to check it again, remove it.

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 69fa487e29ce4368d779c90faefcca8fd3cef07b..aee4b1cc3d988ccc0dbde615000d07bcf5d35051 100644 (file)
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -742,9 +742,6 @@ static int btrfs_clean_quota_tree(struct btrfs_trans_handle *trans,
        int ret;
        int nr = 0;
 
-       if (!root)
-               return -EINVAL;
-
        path = btrfs_alloc_path();
        if (!path)
                return -ENOMEM;