simplify btrfs_lookup()

d_splice_alias() is fine with ERR_PTR(-E...) for inode

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9357a19..fb688c4 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5807,16 +5807,10 @@ static int btrfs_dentry_delete(const struct dentry *dentry)
 static struct dentry *btrfs_lookup(struct inode *dir, struct dentry *dentry,
                                   unsigned int flags)
 {
-       struct inode *inode;
-
-       inode = btrfs_lookup_dentry(dir, dentry);
-       if (IS_ERR(inode)) {
-               if (PTR_ERR(inode) == -ENOENT)
-                       inode = NULL;
-               else
-                       return ERR_CAST(inode);
-       }
+       struct inode *inode = btrfs_lookup_dentry(dir, dentry);
 
+       if (inode == ERR_PTR(-ENOENT))
+               inode = NULL;
        return d_splice_alias(inode, dentry);
 }