JFS: 0 is not valid errno value so return NULL from jfs_lookup

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
Cc: jfs-discussion@lists.sourceforge.net
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 0ba6778..2aba823 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -1455,7 +1455,7 @@
 		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);