Btrfs: fix error handling in delete_block_group_cache()

btrfs_iget() never return NULL.
So, NULL check is unnecessary.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 5a15c96..7e7fd1b 100644 (file)
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3270,8 +3270,8 @@ static int delete_block_group_cache(struct btrfs_fs_info *fs_info,
        key.offset = 0;
 
        inode = btrfs_iget(fs_info->sb, &key, root, NULL);
-       if (IS_ERR_OR_NULL(inode) || is_bad_inode(inode)) {
-               if (inode && !IS_ERR(inode))
+       if (IS_ERR(inode) || is_bad_inode(inode)) {
+               if (!IS_ERR(inode))
                        iput(inode);
                return -ENOENT;
        }