virtio: fix net driver loop case where we fail to restart

skb is only NULL the first time around: it's more correct to test for being under-budget. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
git-mirror · Nov 19, 2007 · 8329d98 · 8329d98
1 parent 9a4b970
commit 8329d98
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
@@ -198,8 +198,8 @@ static int virtnet_poll(struct napi_struct *napi, int budget)
 	if (vi->num < vi->max / 2)
 		try_fill_recv(vi);
 
-	/* All done? */
-	if (!skb) {
+	/* Out of packets? */
+	if (received < budget) {
 		netif_rx_complete(vi->dev, napi);
 		if (unlikely(!vi->rvq->vq_ops->restart(vi->rvq))
 		    && netif_rx_reschedule(vi->dev, napi))