/* Setup and register the loopback device. */
static int __init loopback_init(void)
{
- return register_netdev(&loopback_dev);
+ int err = register_netdev(&loopback_dev);
+
+ if (err)
+ panic("loopback: Failed to register netdevice: %d\n", err);
+
+ return err;
};
module_init(loopback_init);