static int qnoc_probe()

in qcom/sm8450.c [1846:1928]

• 66 lines of code
• 11 McCabe index (conditional complexity)

static int qnoc_probe(struct platform_device *pdev)
{
	const struct qcom_icc_desc *desc;
	struct icc_onecell_data *data;
	struct icc_provider *provider;
	struct qcom_icc_node **qnodes;
	struct qcom_icc_provider *qp;
	struct icc_node *node;
	size_t num_nodes, i;
	int ret;

	desc = device_get_match_data(&pdev->dev);
	if (!desc)
		return -EINVAL;

	qnodes = desc->nodes;
	num_nodes = desc->num_nodes;

	qp = devm_kzalloc(&pdev->dev, sizeof(*qp), GFP_KERNEL);
	if (!qp)
		return -ENOMEM;

	data = devm_kcalloc(&pdev->dev, num_nodes, sizeof(*node), GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	provider = &qp->provider;
	provider->dev = &pdev->dev;
	provider->set = qcom_icc_set;
	provider->pre_aggregate = qcom_icc_pre_aggregate;
	provider->aggregate = qcom_icc_aggregate;
	provider->xlate_extended = qcom_icc_xlate_extended;
	INIT_LIST_HEAD(&provider->nodes);
	provider->data = data;

	qp->dev = &pdev->dev;
	qp->bcms = desc->bcms;
	qp->num_bcms = desc->num_bcms;

	qp->voter = of_bcm_voter_get(qp->dev, NULL);
	if (IS_ERR(qp->voter))
		return PTR_ERR(qp->voter);

	ret = icc_provider_add(provider);
	if (ret) {
		dev_err(&pdev->dev, "error adding interconnect provider\n");
		return ret;
	}

	for (i = 0; i < qp->num_bcms; i++)
		qcom_icc_bcm_init(qp->bcms[i], &pdev->dev);

	for (i = 0; i < num_nodes; i++) {
		size_t j;

		if (!qnodes[i])
			continue;

		node = icc_node_create(qnodes[i]->id);
		if (IS_ERR(node)) {
			ret = PTR_ERR(node);
			goto err;
		}

		node->name = qnodes[i]->name;
		node->data = qnodes[i];
		icc_node_add(node, provider);

		for (j = 0; j < qnodes[i]->num_links; j++)
			icc_link_create(node, qnodes[i]->links[j]);

		data->nodes[i] = node;
	}
	data->num_nodes = num_nodes;

	platform_set_drvdata(pdev, qp);

	return 0;
err:
	icc_nodes_remove(provider);
	icc_provider_del(provider);
	return ret;
}