From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 30 Apr 2018 23:18:26 +0000 (-0400)
Subject: cramfs_lookup(): use d_splice_alias()
X-Git-Tag: v4.19~853^2~26
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d023b3a19fd5e9d3955b02581a4ca479c6bcef6e;p=platform%2Fkernel%2Flinux-rpi.git

cramfs_lookup(): use d_splice_alias()

simpler code that way, actually

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index 124b093..c4fb9ad 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -808,10 +808,7 @@ static struct dentry *cramfs_lookup(struct inode *dir, struct dentry *dentry, un
 	}
 out:
 	mutex_unlock(&read_mutex);
-	if (IS_ERR(inode))
-		return ERR_CAST(inode);
-	d_add(dentry, inode);
-	return NULL;
+	return d_splice_alias(inode, dentry);
 }
 
 static int cramfs_readpage(struct file *file, struct page *page)