--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1500,6 +1500,10 @@ static void bond_compute_features(struct bonding *bond)
 static void bond_setup_by_slave(struct net_device *bond_dev,
                                struct net_device *slave_dev)
 {
+       bool was_up = !!(bond_dev->flags & IFF_UP);
+
+       dev_close(bond_dev);
+
        bond_dev->header_ops        = slave_dev->header_ops;
 
        bond_dev->type              = slave_dev->type;
@@ -1514,6 +1518,8 @@ static void bond_setup_by_slave(struct net_device *bond_dev,
                bond_dev->flags &= ~(IFF_BROADCAST | IFF_MULTICAST);
                bond_dev->flags |= (IFF_POINTOPOINT | IFF_NOARP);
        }
+       if (was_up)
+               dev_open(bond_dev, NULL);
 }
 
 /* On bonding slaves other than the currently active slave, suppress