davinci_emac: fix race in transmit time stamping.

Signed-off-by: NRichard Cochran <richard.cochran@omicron.at>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/davinci_emac.c

@@ -1083,6 +1083,8 @@ static int emac_dev_xmit(struct sk_buff *skb, struct net_device *ndev)
 		goto fail_tx;
 	}
 
+	skb_tx_timestamp(skb);
+
 	ret_code = cpdma_chan_submit(priv->txchan, skb, skb->data, skb->len,
 				     GFP_KERNEL);
 	if (unlikely(ret_code != 0)) {
@@ -1090,7 +1092,6 @@ static int emac_dev_xmit(struct sk_buff *skb, struct net_device *ndev)
 			dev_err(emac_dev, "DaVinci EMAC: desc submit failed");
 		goto fail_tx;
 	}
-	skb_tx_timestamp(skb);
 
 	return NETDEV_TX_OK;