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authorStephen Hemminger <shemminger@linux-foundation.org>2007-05-23 00:39:52 +0200
committerAdrian Bunk <bunk@stusta.de>2007-05-23 00:39:52 +0200
commit57b0c610b81c58e77299c7a0d96048a593183a98 (patch)
tree1ff937facddb0124610bf17ad9e76e105ed01adc /net/ipv6/addrconf.c
parentdffa279e109e2462068b8a22f3783e3cbd930d81 (diff)
[IPV6]: Track device renames in snmp6.
When network device's are renamed, the IPV6 snmp6 code gets confused. It doesn't track name changes so it will OOPS when network device's are removed. The fix is trivial, just unregister/re-register in notify handler. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Adrian Bunk <bunk@stusta.de>
Diffstat (limited to 'net/ipv6/addrconf.c')
-rw-r--r--net/ipv6/addrconf.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index eef33b83a40..7d0e86d5395 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2262,8 +2262,9 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
break;
case NETDEV_CHANGENAME:
-#ifdef CONFIG_SYSCTL
if (idev) {
+ snmp6_unregister_dev(idev);
+#ifdef CONFIG_SYSCTL
addrconf_sysctl_unregister(&idev->cnf);
neigh_sysctl_unregister(idev->nd_parms);
neigh_sysctl_register(dev, idev->nd_parms,
@@ -2271,8 +2272,9 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event,
&ndisc_ifinfo_sysctl_change,
NULL);
addrconf_sysctl_register(idev, &idev->cnf);
- }
#endif
+ snmp6_register_dev(idev);
+ }
break;
};