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bonding: fix bond_inet6addr_event()

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After commit ad1afb0039 (vlan_dev: VLAN 0 should be treated
as "no vlan tag" (802.1p packet)),
bond_inet6addr_event() might be called with a NULL bond->vlgrp pointer, and
a non empty bond->vlan_list. vlan_group_get_device() is dereferencing a NULL pointer.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2010-07-19 03:24:14 +00:00 committed by David S. Miller
parent c26875e2e1
commit db5dda9057
1 changed files with 2 additions and 0 deletions
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2
drivers/net/bonding/bond_ipv6.c
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@ -178,6 +178,8 @@ static int bond_inet6addr_event(struct notifier_block *this,
}
list_for_each_entry(vlan, &bond->vlan_list, vlan_list) {
if (!bond->vlgrp)
continue;
vlan_dev = vlan_group_get_device(bond->vlgrp,
vlan->vlan_id);
if (vlan_dev == event_dev) {