static int ap_query_queue(ap_qid_t qid, int *queue_depth, int *device_type)
{
	struct ap_queue_status status;
	int t_depth, t_device_type, rc, i;

	rc = -EBUSY;
	for (i = 0; i < AP_MAX_RESET; i++) {
		status = ap_test_queue(qid, &t_depth, &t_device_type);
		switch (status.response_code) {
		case AP_RESPONSE_NORMAL:
			*queue_depth = t_depth + 1;
			*device_type = t_device_type;
			rc = 0;
			break;
		case AP_RESPONSE_Q_NOT_AVAIL:
			rc = -ENODEV;
			break;
		case AP_RESPONSE_RESET_IN_PROGRESS:
			break;
		case AP_RESPONSE_DECONFIGURED:
			rc = -ENODEV;
			break;
		case AP_RESPONSE_CHECKSTOPPED:
			rc = -ENODEV;
			break;
		case AP_RESPONSE_INVALID_ADDRESS:
			rc = -ENODEV;
			break;
		case AP_RESPONSE_OTHERWISE_CHANGED:
			break;
		case AP_RESPONSE_BUSY:
			break;
		default:
			BUG();
		}
		if (rc != -EBUSY)
			break;
		if (i < AP_MAX_RESET - 1)
			udelay(5);
	}
	return rc;
}

This category addresses vulnerabilities caused by flawed access control mechanisms, where incorrect permission settings allow unauthorized users to access restricted resources.