Merge branch 'vhost-net' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

drivers/vhost/net.c

@@ -177,8 +177,8 @@ static void handle_tx(struct vhost_net *net)
 			break;
 		}
 		if (err != len)
-			pr_err("Truncated TX packet: "
-			       " len %d != %zd\n", err, len);
+			pr_debug("Truncated TX packet: "
+				 " len %d != %zd\n", err, len);
 		vhost_add_used_and_signal(&net->dev, vq, head, 0);
 		total_len += len;
 		if (unlikely(total_len >= VHOST_NET_WEIGHT)) {
@@ -275,8 +275,8 @@ static void handle_rx(struct vhost_net *net)
 		}
 		/* TODO: Should check and handle checksum. */
 		if (err > len) {
-			pr_err("Discarded truncated rx packet: "
-			       " len %d > %zd\n", err, len);
+			pr_debug("Discarded truncated rx packet: "
+				 " len %d > %zd\n", err, len);
 			vhost_discard_vq_desc(vq);
 			continue;
 		}
@@ -534,11 +534,16 @@ static long vhost_net_set_backend(struct vhost_net *n, unsigned index, int fd)
 	rcu_assign_pointer(vq->private_data, sock);
 	vhost_net_enable_vq(n, vq);
 done:
+	mutex_unlock(&vq->mutex);
+
 	if (oldsock) {
 		vhost_net_flush_vq(n, index);
 		fput(oldsock->file);
 	}
 
+	mutex_unlock(&n->dev.mutex);
+	return 0;
+
 err_vq:
 	mutex_unlock(&vq->mutex);
 err: