nuport-mac: check netif_receive_skb() return value

We did not reassign status to netif_receive_skb() return value, we thus
almost always incremented the dropped counter because the descriptor status
value never matches the NET_RX_DROP.

SVN-Revision: 32659

target/linux/mcs814x/files-3.3/drivers/net/ethernet/mcs8140/nuport_mac.c

@@ -558,8 +558,7 @@ static int nuport_mac_rx(struct net_device *dev, int limit)
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
 
 		/* Pass the received packet to network layer */
-		netif_receive_skb(skb);
+		status = netif_receive_skb(skb);
-
 		if (status != NET_RX_DROP)
 			dev->stats.rx_bytes += len - 4;	/* Without CRC */
 		else