net: ethernet: use platform_{get,set}_drvdata()

Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.

Also, unnecessary dev_set_drvdata() is removed, because the driver core
clears the driver data to NULL after device_release or on probe failure.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c
index 921729f..e6e0292 100644
--- a/drivers/net/ethernet/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/octeon/octeon_mgmt.c
@@ -1437,7 +1437,7 @@
 
 	SET_NETDEV_DEV(netdev, &pdev->dev);
 
-	dev_set_drvdata(&pdev->dev, netdev);
+	platform_set_drvdata(pdev, netdev);
 	p = netdev_priv(netdev);
 	netif_napi_add(netdev, &p->napi, octeon_mgmt_napi_poll,
 		       OCTEON_MGMT_NAPI_WEIGHT);
@@ -1559,7 +1559,7 @@
 
 static int octeon_mgmt_remove(struct platform_device *pdev)
 {
-	struct net_device *netdev = dev_get_drvdata(&pdev->dev);
+	struct net_device *netdev = platform_get_drvdata(pdev);
 
 	unregister_netdev(netdev);
 	free_netdev(netdev);