fanotify: do not always return 0 in fsnotify

It seems to me you are always returning 0 in fsnotify, when you should return
the error (EPERM) returned by fanotify.
Signed-off-by: NJean-Christophe DUBOIS <jcd@tribudubois.net>
Signed-off-by: NEric Paris <eparis@redhat.com>

fs/notify/fsnotify.c

@@ -269,7 +269,7 @@ int fsnotify(struct inode *to_tell, __u32 mask, void *data, int data_is,
 	if (event)
 		fsnotify_put_event(event);
 
-	return 0;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(fsnotify);