static int i3c_master_retrieve_dev_info()

in master.c [1223:1269]

• 37 lines of code
• 12 McCabe index (conditional complexity)

static int i3c_master_retrieve_dev_info(struct i3c_dev_desc *dev)
{
	struct i3c_master_controller *master = i3c_dev_get_master(dev);
	enum i3c_addr_slot_status slot_status;
	int ret;

	if (!dev->info.dyn_addr)
		return -EINVAL;

	slot_status = i3c_bus_get_addr_slot_status(&master->bus,
						   dev->info.dyn_addr);
	if (slot_status == I3C_ADDR_SLOT_RSVD ||
	    slot_status == I3C_ADDR_SLOT_I2C_DEV)
		return -EINVAL;

	ret = i3c_master_getpid_locked(master, &dev->info);
	if (ret)
		return ret;

	ret = i3c_master_getbcr_locked(master, &dev->info);
	if (ret)
		return ret;

	ret = i3c_master_getdcr_locked(master, &dev->info);
	if (ret)
		return ret;

	if (dev->info.bcr & I3C_BCR_MAX_DATA_SPEED_LIM) {
		ret = i3c_master_getmxds_locked(master, &dev->info);
		if (ret)
			return ret;
	}

	if (dev->info.bcr & I3C_BCR_IBI_PAYLOAD)
		dev->info.max_ibi_len = 1;

	i3c_master_getmrl_locked(master, &dev->info);
	i3c_master_getmwl_locked(master, &dev->info);

	if (dev->info.bcr & I3C_BCR_HDR_CAP) {
		ret = i3c_master_gethdrcap_locked(master, &dev->info);
		if (ret)
			return ret;
	}

	return 0;
}