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>
/* Step 1: remove reference to ipv6 device from parent device.
Do not dev_put!
*/
/* Step 1: remove reference to ipv6 device from parent device.
Do not dev_put!
*/
idev->dead = 1;
/* protected by rtnl_lock */
idev->dead = 1;
/* protected by rtnl_lock */
write_lock_bh(&idev->lock);
/* Step 3: clear flags for stateless addrconf */
write_lock_bh(&idev->lock);
/* Step 3: clear flags for stateless addrconf */
idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
/* Step 4: clear address list */
#ifdef CONFIG_IPV6_PRIVACY
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 */
in6_dev_put(idev);
/* clear tempaddr list */
/* Step 5: Discard multicast list */
/* Step 5: Discard multicast list */
ipv6_mc_destroy_dev(idev);
else
ipv6_mc_down(idev);
ipv6_mc_destroy_dev(idev);
else
ipv6_mc_down(idev);
/* Shot the device (if unregistered) */
/* Shot the device (if unregistered) */
addrconf_sysctl_unregister(idev);
neigh_parms_release(&nd_tbl, idev->nd_parms);
neigh_ifdown(&nd_tbl, dev);
addrconf_sysctl_unregister(idev);
neigh_parms_release(&nd_tbl, idev->nd_parms);
neigh_ifdown(&nd_tbl, dev);