diff options
| author | nikolay@redhat.com | 2013-04-18 07:33:38 +0000 |
|---|---|---|
| committer | David S. Miller | 2013-04-19 17:48:19 -0400 |
| commit | d632ce989c811863a1ce9b1c53dae2cf06b35c49 (patch) | |
| tree | de50df492d43f49a83af0ec2fa029d8855d55dd6 | |
| parent | fc7a72ac86e2956dd405b0c604fea45a2702f567 (diff) | |
bonding: in bond_mc_swap() bond's mc addr list is walked without lock
Use netif_addr_lock_bh() to acquire the appropriate lock before walking.
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index ae35b28a39e4..dbbea0eec134 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -846,8 +846,10 @@ static void bond_mc_swap(struct bonding *bond, struct slave *new_active, if (bond->dev->flags & IFF_ALLMULTI) dev_set_allmulti(old_active->dev, -1); + netif_addr_lock_bh(bond->dev); netdev_for_each_mc_addr(ha, bond->dev) dev_mc_del(old_active->dev, ha->addr); + netif_addr_unlock_bh(bond->dev); } if (new_active) { @@ -858,8 +860,10 @@ static void bond_mc_swap(struct bonding *bond, struct slave *new_active, if (bond->dev->flags & IFF_ALLMULTI) dev_set_allmulti(new_active->dev, 1); + netif_addr_lock_bh(bond->dev); netdev_for_each_mc_addr(ha, bond->dev) dev_mc_add(new_active->dev, ha->addr); + netif_addr_unlock_bh(bond->dev); } } |