NFS: Fix a typo in _nfs_display_fhandle

The check for 'fh == NULL' needs to come _before_ we dereference
fh.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 99a4f52..ba03b79 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1058,7 +1058,7 @@
 {
 	unsigned short i;
 
-	if (fh->size == 0 || fh == NULL) {
+	if (fh == NULL || fh->size == 0) {
 		printk(KERN_DEFAULT "%s at %p is empty\n", caption, fh);
 		return;
 	}