bonding: fix error check in sysfs creation

	The existing code did not correctly handle failures to create
the per-interface sysfs group for bonding.

	Modified code to notice errors, and correctly unwind.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/bonding/bond_main.c

@@ -4756,14 +4756,19 @@ int bond_create(char *name, struct bond_params *params, struct bonding **newbond
 
 	rtnl_unlock(); /* allows sysfs registration of net device */
 	res = bond_create_sysfs_entry(bond_dev->priv);
-	goto done;
+	if (res < 0) {
+		rtnl_lock();
+		goto out_bond;
+	}
+
+	return 0;
+
 out_bond:
 	bond_deinit(bond_dev);
 out_netdev:
 	free_netdev(bond_dev);
 out_rtnl:
 	rtnl_unlock();
-done:
 	return res;
 }