int icc_link_create()

in core.c [870:906]

• 29 lines of code
• 5 McCabe index (conditional complexity)

int icc_link_create(struct icc_node *node, const int dst_id)
{
	struct icc_node *dst;
	struct icc_node **new;
	int ret = 0;

	if (!node->provider)
		return -EINVAL;

	mutex_lock(&icc_lock);

	dst = node_find(dst_id);
	if (!dst) {
		dst = icc_node_create_nolock(dst_id);

		if (IS_ERR(dst)) {
			ret = PTR_ERR(dst);
			goto out;
		}
	}

	new = krealloc(node->links,
		       (node->num_links + 1) * sizeof(*node->links),
		       GFP_KERNEL);
	if (!new) {
		ret = -ENOMEM;
		goto out;
	}

	node->links = new;
	node->links[node->num_links++] = dst;

out:
	mutex_unlock(&icc_lock);

	return ret;
}