jfs: 0 is not valid errno value

... so return NULL from jfs_lookup

Signed-off-by Marcin Slusarz <[email protected]>

Cc [email protected]

Cc Alexander Viro <[email protected]>

---
is it ok to return NULL from this function?
compile tested only

---
 fs/jfs/namei.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

fs/jfs/namei.c +1 -1

@@ -1455,7 +1455,7 @@ static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, struc
 		free_UCSname(&key);
 		if (rc == -ENOENT) {
 			d_add(dentry, NULL);
-			return ERR_PTR(0);
+			return NULL;
 		} else if (rc) {
 			jfs_err("jfs_lookup: dtSearch returned %d", rc);
 			return ERR_PTR(rc);