int icc_link_destroy()

in core.c [916:952]

• 28 lines of code
• 7 McCabe index (conditional complexity)

int icc_link_destroy(struct icc_node *src, struct icc_node *dst)
{
	struct icc_node **new;
	size_t slot;
	int ret = 0;

	if (IS_ERR_OR_NULL(src))
		return -EINVAL;

	if (IS_ERR_OR_NULL(dst))
		return -EINVAL;

	mutex_lock(&icc_lock);

	for (slot = 0; slot < src->num_links; slot++)
		if (src->links[slot] == dst)
			break;

	if (WARN_ON(slot == src->num_links)) {
		ret = -ENXIO;
		goto out;
	}

	src->links[slot] = src->links[--src->num_links];

	new = krealloc(src->links, src->num_links * sizeof(*src->links),
		       GFP_KERNEL);
	if (new)
		src->links = new;
	else
		ret = -ENOMEM;

out:
	mutex_unlock(&icc_lock);

	return ret;
}