staging-slicoss: Kill directly reference of netdev->priv

Simply replace netdev->priv with netdev_priv().

Signed-off-by: Wang Chen <[e-mail]>
Acked-by: Greg Kroah-Hartman <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/staging/slicoss/slicoss.c

···
 #ifdef SLIC_USER_REQUEST_DUMP_ENABLED
 	case SIOCSLICDUMPCARD:
 		{
-			struct adapter *adapter = (struct adapter *)
-							dev->priv;
+			struct adapter *adapter = netdev_priv(dev);
 			struct sliccard *card;
 
 			ASSERT(adapter);
···
 	struct sliccard *card;
 
 	ASSERT(dev);
-	adapter = (struct adapter *)((struct net_device *) dev)->priv;
+	adapter = netdev_priv((struct net_device *)dev);
 	ASSERT(adapter);
 	card = adapter->card;
 	ASSERT(card);
···
 	struct slic_shmem *pshmem;
 
 	ASSERT(dev);
-	adapter = (struct adapter *)((struct net_device *)dev)->priv;
+	adapter = netdev_priv((struct net_device *)dev);
 	ASSERT(adapter);
 	card = adapter->card;
 	ASSERT(card);