static int __vme_register_driver_bus()

in vme.c [1843:1887]

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

static int __vme_register_driver_bus(struct vme_driver *drv,
	struct vme_bridge *bridge, unsigned int ndevs)
{
	int err;
	unsigned int i;
	struct vme_dev *vdev;
	struct vme_dev *tmp;

	for (i = 0; i < ndevs; i++) {
		vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
		if (!vdev) {
			err = -ENOMEM;
			goto err_devalloc;
		}
		vdev->num = i;
		vdev->bridge = bridge;
		vdev->dev.platform_data = drv;
		vdev->dev.release = vme_dev_release;
		vdev->dev.parent = bridge->parent;
		vdev->dev.bus = &vme_bus_type;
		dev_set_name(&vdev->dev, "%s.%u-%u", drv->name, bridge->num,
			vdev->num);

		err = device_register(&vdev->dev);
		if (err)
			goto err_reg;

		if (vdev->dev.platform_data) {
			list_add_tail(&vdev->drv_list, &drv->devices);
			list_add_tail(&vdev->bridge_list, &bridge->devices);
		} else
			device_unregister(&vdev->dev);
	}
	return 0;

err_reg:
	put_device(&vdev->dev);
err_devalloc:
	list_for_each_entry_safe(vdev, tmp, &drv->devices, drv_list) {
		list_del(&vdev->drv_list);
		list_del(&vdev->bridge_list);
		device_unregister(&vdev->dev);
	}
	return err;
}