bond: Kill directly reference of netdev->priv

Simply replace netdev->priv with netdev_priv().

Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index a339a80..e422dba 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1992,7 +1992,7 @@
 
 static void bond_destructor(struct net_device *bond_dev)
 {
-	struct bonding *bond = bond_dev->priv;
+	struct bonding *bond = netdev_priv(bond_dev);
 
 	if (bond->wq)
 		destroy_workqueue(bond->wq);