net: netsec: enable tx-irq during open callback

Enable TX-irq as well during ndo_open() as we can not count upon
RX to arrive early enough to trigger the napi. This patch is critical
for installation over network.

Fixes: 533dd11a ("net: socionext: Add Synquacer NetSec driver")
Signed-off-by: NJassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/socionext/netsec.c

@@ -1313,8 +1313,8 @@ static int netsec_netdev_open(struct net_device *ndev)
 	napi_enable(&priv->napi);
 	netif_start_queue(ndev);
 
-	/* Enable RX intr. */
-	netsec_write(priv, NETSEC_REG_INTEN_SET, NETSEC_IRQ_RX);
+	/* Enable TX+RX intr. */
+	netsec_write(priv, NETSEC_REG_INTEN_SET, NETSEC_IRQ_RX | NETSEC_IRQ_TX);
 
 	return 0;
 err3: