struct ecard_driver *drv = ECARD_DRV(dev->driver);
        struct ecard_request req;
 
-       if (drv->shutdown)
-               drv->shutdown(ec);
-       ecard_release(ec);
+       if (dev->driver) {
+               if (drv->shutdown)
+                       drv->shutdown(ec);
+               ecard_release(ec);
+       }
 
        /*
         * If this card has a loader, call the reset handler.
 int ecard_register_driver(struct ecard_driver *drv)
 {
        drv->drv.bus = &ecard_bus_type;
-       drv->drv.probe = ecard_drv_probe;
-       drv->drv.remove = ecard_drv_remove;
-       drv->drv.shutdown = ecard_drv_shutdown;
 
        return driver_register(&drv->drv);
 }
        .name           = "ecard",
        .dev_attrs      = ecard_dev_attrs,
        .match          = ecard_match,
+       .probe          = ecard_drv_probe,
+       .remove         = ecard_drv_remove,
+       .shutdown       = ecard_drv_shutdown,
 };
 
 static int ecard_bus_init(void)