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| author | Paul Durrant <Paul.Durrant@citrix.com> | 2017-03-02 12:54:25 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-03 09:36:15 -0800 |
| commit | d67ce7da3b1eda838db7bdca86d7ec28ef37068e (patch) | |
| tree | cb2d90c092ed661ac3574541e82219db9863e5c0 | |
| parent | f7bb3d86a64775e0a7636d211dbd80cbeea6e618 (diff) | |
| download | lwn-d67ce7da3b1eda838db7bdca86d7ec28ef37068e.tar.gz lwn-d67ce7da3b1eda838db7bdca86d7ec28ef37068e.zip | |
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: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/xen-netback/xenbus.c | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index bb854f92f5a5..d82ddc913b4c 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -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); } } |