korina: fix usage of driver_data

Using platform_set_drvdata() here makes no sense, since the driver_data
field has already been filled with valuable data (i.e. the MAC address).
Also having driver_data point to the net_device is rather pointless
since struct korina_device contains an apropriate field for it.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/korina.c b/drivers/net/korina.c
index 4a5580c..fefb33d 100644
--- a/drivers/net/korina.c
+++ b/drivers/net/korina.c
@@ -1089,7 +1089,6 @@
 		return -ENOMEM;
 	}
 	SET_NETDEV_DEV(dev, &pdev->dev);
-	platform_set_drvdata(pdev, dev);
 	lp = netdev_priv(dev);
 
 	bif->dev = dev;