static int led_halt()

in led.c [504:536]

• 27 lines of code
• 8 McCabe index (conditional complexity)

static int led_halt(struct notifier_block *nb, unsigned long event, void *buf) 
{
	char *txt;

	if (notifier_disabled)
		return NOTIFY_OK;

	notifier_disabled = 1;
	switch (event) {
	case SYS_RESTART:	txt = "SYSTEM RESTART";
				break;
	case SYS_HALT:		txt = "SYSTEM HALT";
				break;
	case SYS_POWER_OFF:	txt = "SYSTEM POWER OFF";
				break;
	default:		return NOTIFY_DONE;
	}
	
	/* Cancel the work item and delete the queue */
	if (led_wq) {
		cancel_delayed_work_sync(&led_task);
		destroy_workqueue(led_wq);
		led_wq = NULL;
	}
 
	if (lcd_info.model == DISPLAY_MODEL_LCD)
		lcd_print(txt);
	else
		if (led_func_ptr)
			led_func_ptr(0xff); /* turn all LEDs ON */
	
	return NOTIFY_OK;
}