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authorDenis V. Lunev <den@openvz.org>2008-04-03 13:30:17 -0700
committerDavid S. Miller <davem@davemloft.net>2008-04-03 13:30:17 -0700
commit439e23857a21c3a953826eed23c818697a97de1a (patch)
tree72d751492b9bafb55da3c6a35cea9e17573f938b /net
parentaf2681828af5f2b42e12e8b16ba0cf113cf486c8 (diff)
downloadlinux-439e23857a21c3a953826eed23c818697a97de1a.tar.bz2
[IPV6]: Event type in addrconf_ifdown is mis-used.
addrconf_ifdown is broken in respect to the usage of how parameter. This function is called with (event != NETDEV_DOWN) and (2) on the IPv6 stop. It the latter case inet6_dev from loopback device should be destroyed. Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/addrconf.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e7a1882db048..4fa9da0be19a 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2469,7 +2469,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
/* Step 1: remove reference to ipv6 device from parent device.
Do not dev_put!
*/
- if (how == 1) {
+ if (how) {
idev->dead = 1;
/* protected by rtnl_lock */
@@ -2501,12 +2501,12 @@ static int addrconf_ifdown(struct net_device *dev, int how)
write_lock_bh(&idev->lock);
/* Step 3: clear flags for stateless addrconf */
- if (how != 1)
+ if (!how)
idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
/* Step 4: clear address list */
#ifdef CONFIG_IPV6_PRIVACY
- if (how == 1 && del_timer(&idev->regen_timer))
+ if (how && del_timer(&idev->regen_timer))
in6_dev_put(idev);
/* clear tempaddr list */
@@ -2543,7 +2543,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
/* Step 5: Discard multicast list */
- if (how == 1)
+ if (how)
ipv6_mc_destroy_dev(idev);
else
ipv6_mc_down(idev);
@@ -2552,7 +2552,7 @@ static int addrconf_ifdown(struct net_device *dev, int how)
/* Shot the device (if unregistered) */
- if (how == 1) {
+ if (how) {
addrconf_sysctl_unregister(idev);
neigh_parms_release(&nd_tbl, idev->nd_parms);
neigh_ifdown(&nd_tbl, dev);