static int gb_svc_hello()

in svc.c [837:875]

• 32 lines of code
• 4 McCabe index (conditional complexity)

static int gb_svc_hello(struct gb_operation *op)
{
	struct gb_connection *connection = op->connection;
	struct gb_svc *svc = gb_connection_get_data(connection);
	struct gb_svc_hello_request *hello_request;
	int ret;

	if (op->request->payload_size < sizeof(*hello_request)) {
		dev_warn(&svc->dev, "short hello request (%zu < %zu)\n",
			 op->request->payload_size,
			 sizeof(*hello_request));
		return -EINVAL;
	}

	hello_request = op->request->payload;
	svc->endo_id = le16_to_cpu(hello_request->endo_id);
	svc->ap_intf_id = hello_request->interface_id;

	ret = device_add(&svc->dev);
	if (ret) {
		dev_err(&svc->dev, "failed to register svc device: %d\n", ret);
		return ret;
	}

	ret = gb_svc_watchdog_create(svc);
	if (ret) {
		dev_err(&svc->dev, "failed to create watchdog: %d\n", ret);
		goto err_unregister_device;
	}

	gb_svc_debugfs_init(svc);

	return gb_svc_queue_deferred_request(op);

err_unregister_device:
	gb_svc_watchdog_destroy(svc);
	device_del(&svc->dev);
	return ret;
}