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Commit d67ce7da authored by Paul Durrant's avatar Paul Durrant Committed by David S. Miller
Browse files

xen-netback: keep a local pointer for vif in backend_disconnect() 



This patch replaces use of 'be->vif' with 'vif' and hence generally
makes the function look tidier. No semantic change.

Signed-off-by: default avatarPaul Durrant <paul.durrant@citrix.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f7bb3d86

drivers/net/xen-netback/xenbus.c

+18 −14
Original line number Diff line number Diff line
@@ -492,24 +492,28 @@ static int backend_create_xenvif(struct backend_info *be) 


static void backend_disconnect(struct backend_info *be)

{

	if (be->vif) {

	struct xenvif *vif = be->vif;



	if (vif) {

		unsigned int queue_index;



		xen_unregister_watchers(be->vif);

		xen_unregister_watchers(vif);

#ifdef CONFIG_DEBUG_FS

		xenvif_debugfs_delif(be->vif);

		xenvif_debugfs_delif(vif);

#endif /* CONFIG_DEBUG_FS */

		xenvif_disconnect_data(be->vif);

		for (queue_index = 0; queue_index < be->vif->num_queues; ++queue_index)

			xenvif_deinit_queue(&be->vif->queues[queue_index]);



		spin_lock(&be->vif->lock);

		vfree(be->vif->queues);

		be->vif->num_queues = 0;

		be->vif->queues = NULL;

		spin_unlock(&be->vif->lock);



		xenvif_disconnect_ctrl(be->vif);

		xenvif_disconnect_data(vif);

		for (queue_index = 0;

		     queue_index < vif->num_queues;

		     ++queue_index)

			xenvif_deinit_queue(&vif->queues[queue_index]);



		spin_lock(&vif->lock);

		vfree(vif->queues);

		vif->num_queues = 0;

		vif->queues = NULL;

		spin_unlock(&vif->lock);



		xenvif_disconnect_ctrl(vif);

	}

}