static int gb_operation_response_send()

in operation.c [823:866]

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

static int gb_operation_response_send(struct gb_operation *operation,
				      int errno)
{
	struct gb_connection *connection = operation->connection;
	int ret;

	if (!operation->response &&
	    !gb_operation_is_unidirectional(operation)) {
		if (!gb_operation_response_alloc(operation, 0, GFP_KERNEL))
			return -ENOMEM;
	}

	/* Record the result */
	if (!gb_operation_result_set(operation, errno)) {
		dev_err(&connection->hd->dev, "request result already set\n");
		return -EIO;	/* Shouldn't happen */
	}

	/* Sender of request does not care about response. */
	if (gb_operation_is_unidirectional(operation))
		return 0;

	/* Reference will be dropped when message has been sent. */
	gb_operation_get(operation);
	ret = gb_operation_get_active(operation);
	if (ret)
		goto err_put;

	/* Fill in the response header and send it */
	operation->response->header->result = gb_operation_errno_map(errno);

	ret = gb_message_send(operation->response, GFP_KERNEL);
	if (ret)
		goto err_put_active;

	return 0;

err_put_active:
	gb_operation_put_active(operation);
err_put:
	gb_operation_put(operation);

	return ret;
}