From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 30 Apr 2018 23:05:17 +0000 (-0400)
Subject: bfs_lookup(): use d_splice_alias()
X-Git-Tag: v4.19~853^2~29
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a596a23b9a08ce79553e55e0726502ca8bce852b;p=platform%2Fkernel%2Flinux-rpi.git

bfs_lookup(): use d_splice_alias()

code is actually simpler that way.

Acked-by: "Tigran A. Aivazian" <aivazian.tigran@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index ee832ca..facf9614 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -141,14 +141,9 @@ static struct dentry *bfs_lookup(struct inode *dir, struct dentry *dentry,
 		unsigned long ino = (unsigned long)le16_to_cpu(de->ino);
 		brelse(bh);
 		inode = bfs_iget(dir->i_sb, ino);
-		if (IS_ERR(inode)) {
-			mutex_unlock(&info->bfs_lock);
-			return ERR_CAST(inode);
-		}
 	}
 	mutex_unlock(&info->bfs_lock);
-	d_add(dentry, inode);
-	return NULL;
+	return d_splice_alias(inode, dentry);
 }
 
 static int bfs_link(struct dentry *old, struct inode *dir,