diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/virtio_net.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index fe7cdf2a2a23..d50f4fe352b3 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -287,21 +287,25 @@ again: free_old_xmit_skbs(vi); /* If we has a buffer left over from last time, send it now. */ - if (vi->last_xmit_skb) { + if (unlikely(vi->last_xmit_skb)) { if (xmit_skb(vi, vi->last_xmit_skb) != 0) { /* Drop this skb: we only queue one. */ vi->dev->stats.tx_dropped++; kfree_skb(skb); + skb = NULL; goto stop_queue; } vi->last_xmit_skb = NULL; } /* Put new one in send queue and do transmit */ - __skb_queue_head(&vi->send, skb); - if (xmit_skb(vi, skb) != 0) { - vi->last_xmit_skb = skb; - goto stop_queue; + if (likely(skb)) { + __skb_queue_head(&vi->send, skb); + if (xmit_skb(vi, skb) != 0) { + vi->last_xmit_skb = skb; + skb = NULL; + goto stop_queue; + } } done: vi->svq->vq_ops->kick(vi->svq); |