Function device_delete_children

freebsd/kern/subr_bus.c:1981–1999

* @brief Delete all children devices of the given device, if any. * * This function deletes all children devices of the given device, if * any, using the device_delete_child() function for each device it * finds. If a child device cannot be deleted, this function will * return an error code. * * @param dev the parent device * * @retval 0 success * @retval non-zero a device would not de

 * @retval non-zero	a device would not detach
 */
int
device_delete_children(device_t dev)
{
	device_t child;
	int error;

	PDEBUG(("Deleting all children of %s", DEVICENAME(dev)));

	error = 0;

	while ((child = TAILQ_FIRST(&dev->children)) != NULL) {
		error = device_delete_child(dev, child);
		if (error) {
			PDEBUG(("Failed deleting %s", DEVICENAME(child)));
			break;
		}
	}
	return (error);
}

/**
 * @brief Find a device given a unit number