diff --git a/drivers/net/ntb_netdev.c b/drivers/net/ntb_netdev.c
index 029a4a532a10..02b35cf53a62 100644
--- a/drivers/net/ntb_netdev.c
+++ b/drivers/net/ntb_netdev.c
@@ -199,8 +199,10 @@ static int __ntb_netdev_maybe_stop_tx(struct net_device *netdev,
 static int ntb_netdev_maybe_stop_tx(struct net_device *ndev,
 				    struct ntb_netdev_queue *q, int size)
 {
-	if (__netif_subqueue_stopped(ndev, q->qid) ||
-	    (ntb_transport_tx_free_entry(q->qp) >= size))
+	if (__netif_subqueue_stopped(ndev, q->qid))
+		return -EBUSY;
+
+	if (ntb_transport_tx_free_entry(q->qp) >= size)
 		return 0;
 
 	return __ntb_netdev_maybe_stop_tx(ndev, q, size);
@@ -256,21 +258,30 @@ static netdev_tx_t ntb_netdev_start_xmit(struct sk_buff *skb,
 
 	q = &dev->queues[qid];
 
-	ntb_netdev_maybe_stop_tx(ndev, q, tx_stop);
+	if (unlikely(ntb_netdev_maybe_stop_tx(ndev, q, tx_stop)))
+		return NETDEV_TX_BUSY;
 
 	rc = ntb_transport_tx_enqueue(q->qp, skb, skb->data, skb->len);
-	if (rc)
-		goto err;
+	if (rc) {
+		if (rc == -EAGAIN || rc == -EBUSY) {
+			netif_stop_subqueue(ndev, q->qid);
+			mod_timer(&q->tx_timer,
+				  jiffies + usecs_to_jiffies(tx_time));
+			return NETDEV_TX_BUSY;
+		}
+
+		goto drop;
+	}
 
 	/* check for next submit */
 	ntb_netdev_maybe_stop_tx(ndev, q, tx_stop);
 
 	return NETDEV_TX_OK;
 
-err:
+drop:
+	dev_kfree_skb_any(skb);
 	ndev->stats.tx_dropped++;
-	ndev->stats.tx_errors++;
-	return NETDEV_TX_BUSY;
+	return NETDEV_TX_OK;
 }
 
 static void ntb_netdev_tx_timer(struct timer_list *t)