diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 9ea711430466e29ba1e52175988bc1891ce01fa5..859ddaab5e02753a070f4270252222b69ec9fa9c 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -392,8 +392,8 @@ static struct dentry *get_default_root(struct super_block *sb,
 	location.offset = 0;
 
 	inode = btrfs_iget(sb, &location, new_root, &new);
-	if (!inode)
-		return ERR_PTR(-ENOMEM);
+	if (IS_ERR(inode))
+		return ERR_CAST(inode);
 
 	/*
 	 * If we're just mounting the root most subvol put the inode and return