make d_splice_alias(ERR_PTR(err), dentry) = ERR_PTR(err)

... and simplify the living hell out of callers

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

fs/efs/namei.c

@@ -60,14 +60,11 @@ static efs_ino_t efs_find_entry(struct inode *inode, const char *name, int len)
 
 struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) {
 	efs_ino_t inodenum;
-	struct inode * inode = NULL;
+	struct inode *inode = NULL;
 
 	inodenum = efs_find_entry(dir, dentry->d_name.name, dentry->d_name.len);
-	if (inodenum) {
+	if (inodenum)
 		inode = efs_iget(dir->i_sb, inodenum);
-		if (IS_ERR(inode))
-			return ERR_CAST(inode);
-	}
 
 	return d_splice_alias(inode, dentry);
 }