NFS: nfs_readdir_filler catch all errors

Check for all errors, not a specific one.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 5d7da3a..7b8b7c5 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -556,7 +556,7 @@
 {
 	struct inode	*inode = desc->file->f_path.dentry->d_inode;
 
-	if (nfs_readdir_xdr_to_array(desc, page, inode) == -1)
+	if (nfs_readdir_xdr_to_array(desc, page, inode) < 0)
 		goto error;
 	SetPageUptodate(page);