[NET] loopback: Panic if registration fails
Because IPv4 and IPv6 both depend on the presence of the loopback
device to function, failure in registration the loopback device should
be fatal.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index 6ba6ed2..5106c23 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -229,7 +229,12 @@
/* 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);