[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...@intel.com>

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...@intel.com>
Reviewed-by: David Vrabel <david.vra...@citrix.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
 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;
 }