struct virtio_driver *drv = container_of(dev->dev.driver,
struct virtio_driver, driver);
- dev->config->set_status(dev, dev->config->get_status(dev)
- & ~VIRTIO_CONFIG_S_DRIVER);
drv->remove(dev);
+
+ /* Driver should have reset device. */
+ BUG_ON(dev->config->get_status(dev));
+
+ /* Acknowledge the device's existence again. */
+ add_status(dev, VIRTIO_CONFIG_S_ACKNOWLEDGE);
return 0;
}
dev->dev.bus = &virtio_bus;
sprintf(dev->dev.bus_id, "%u", dev->index);
+ /* We always start by resetting the device, in case a previous
+ * driver messed it up. This also tests that code path a little. */
+ dev->config->reset(dev);
+
/* Acknowledge that we've seen the device. */
add_status(dev, VIRTIO_CONFIG_S_ACKNOWLEDGE);
panic("virtio bus registration failed");
return 0;
}
+
+static void __exit virtio_exit(void)
+{
+ bus_unregister(&virtio_bus);
+}
core_initcall(virtio_init);
+module_exit(virtio_exit);
+
+MODULE_LICENSE("GPL");