+static int __devinit kevent_user_init(void)
+{
+       int err = 0;
+
+       err = kevent_sys_init();
+       if (err)
+               panic("%s: failed to initialize kevent: err=%d.\n", err);

Here should be?
                    panic("%s: failed to initialize kevent: err=%d\n",
kevent_name, err);