+	DEFINE_WAIT(wait);
+	DECLARE_WAIT_QUEUE_HEAD(wq);
+
+	while (!kthread_should_stop()) {
+		prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
+		if (!ps3fb.is_kicked)
+			schedule();
+		finish_wait(&wq, &wait);
+		ps3fb.is_kicked = 0;
+		ps3fb_sync(0);	/* single buffer */

should probably be just:

	while (!kthread_should_stop()) {
		ps3fb_sync(0);
		schedule();
	}

given that you don't need a waitqueue and a spurious wakeup here
seems harmless.