From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Mon, 30 Jul 2007 23:37:19 +0000 (-0700)
Subject: [NET] loopback: Panic if registration fails
X-Git-Tag: v2.6.23-rc2~35^2~24
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aeed9e82cd258b9699eaa6568efefba9cc6d5f01;p=linux-2.6

[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 6ba6ed2b48..5106c2328d 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -229,7 +229,12 @@ struct net_device loopback_dev = {
 /* 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);