static int __init insert_device()

in pnpbios/core.c [299:342]

• 35 lines of code
• 10 McCabe index (conditional complexity)

static int __init insert_device(struct pnp_bios_node *node)
{
	struct pnp_dev *dev;
	char id[8];
	int error;

	/* check if the device is already added */
	list_for_each_entry(dev, &pnpbios_protocol.devices, protocol_list) {
		if (dev->number == node->handle)
			return -EEXIST;
	}

	pnp_eisa_id_to_string(node->eisa_id & PNP_EISA_ID_MASK, id);
	dev = pnp_alloc_dev(&pnpbios_protocol, node->handle, id);
	if (!dev)
		return -ENOMEM;

	pnpbios_parse_data_stream(dev, node);
	dev->active = pnp_is_active(dev);
	dev->flags = node->flags;
	if (!(dev->flags & PNPBIOS_NO_CONFIG))
		dev->capabilities |= PNP_CONFIGURABLE;
	if (!(dev->flags & PNPBIOS_NO_DISABLE) && pnpbios_is_dynamic(dev))
		dev->capabilities |= PNP_DISABLE;
	dev->capabilities |= PNP_READ;
	if (pnpbios_is_dynamic(dev))
		dev->capabilities |= PNP_WRITE;
	if (dev->flags & PNPBIOS_REMOVABLE)
		dev->capabilities |= PNP_REMOVABLE;

	/* clear out the damaged flags */
	if (!dev->active)
		pnp_init_resources(dev);

	error = pnp_add_device(dev);
	if (error) {
		put_device(&dev->dev);
		return error;
	}

	pnpbios_interface_attach_device(node);

	return 0;
}