[PATCH 3.16 168/366] xen-netfront: Remove the meaningless code

[Ben Hutchings]

3.16.61-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: "Li, Liang Z" <liang.z.li@xxxxxxxxx>

commit 905726c1c5a3ca620ba7d73c78eddfb91de5ce28 upstream.

The function netif_set_real_num_tx_queues() will return -EINVAL if
the second parameter < 1, so call this function with the second
parameter set to 0 is meaningless.

Signed-off-by: Liang Li <liang.z.li@xxxxxxxxx>
Reviewed-by: David Vrabel <david.vrabel@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
 drivers/net/xen-netfront.c | 7 -------
 1 file changed, 7 deletions(-)

--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1330,10 +1330,6 @@ static struct net_device *xennet_create_
 	np                   = netdev_priv(netdev);
 	np->xbdev            = dev;
 
-	/* No need to use rtnl_lock() before the call below as it
-	 * happens before register_netdev().
-	 */
-	netif_set_real_num_tx_queues(netdev, 0);
 	np->queues = NULL;
 
 	err = -ENOMEM;
@@ -1992,9 +1988,6 @@ abort_transaction_no_dev_fatal:
 	xennet_disconnect_backend(info);
 	kfree(info->queues);
 	info->queues = NULL;
-	rtnl_lock();
-	netif_set_real_num_tx_queues(info->netdev, 0);
-	rtnl_unlock();
  out:
 	return err;
 }