Merge tag 'locks-v4.9-1' of git://git.samba.org/jlayton/linux
[cascardo/linux.git] / drivers / net / bonding / bond_main.c
index 217e8da..9599ed6 100644 (file)
@@ -1341,9 +1341,10 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
                            slave_dev->name);
        }
 
-       /* already enslaved */
-       if (slave_dev->flags & IFF_SLAVE) {
-               netdev_dbg(bond_dev, "Error: Device was already enslaved\n");
+       /* already in-use? */
+       if (netdev_is_rx_handler_busy(slave_dev)) {
+               netdev_err(bond_dev,
+                          "Error: Device is in use and cannot be enslaved\n");
                return -EBUSY;
        }