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

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

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Paul Durrant 2017-03-02 12:54:25 +00:00 committed by David S. Miller
parent f7bb3d86a6
commit d67ce7da3b
1 changed files with 16 additions and 12 deletions
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28
drivers/net/xen-netback/xenbus.c
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@ -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]);
xenvif_disconnect_data(vif);
for (queue_index = 0;
queue_index < vif->num_queues;
++queue_index)
xenvif_deinit_queue(&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);
spin_lock(&vif->lock);
vfree(vif->queues);
vif->num_queues = 0;
vif->queues = NULL;
spin_unlock(&vif->lock);
xenvif_disconnect_ctrl(be->vif);
xenvif_disconnect_ctrl(vif);
}
}