net: sunbmac: 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 &of->dev,
so we can directly pass a struct platform_device.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/sun/sunbmac.c b/drivers/net/ethernet/sun/sunbmac.c
index 0d43fa9..0a32ca5 100644
--- a/drivers/net/ethernet/sun/sunbmac.c
+++ b/drivers/net/ethernet/sun/sunbmac.c
@@ -1239,7 +1239,7 @@
 
 static int bigmac_sbus_remove(struct platform_device *op)
 {
-	struct bigmac *bp = dev_get_drvdata(&op->dev);
+	struct bigmac *bp = platform_get_drvdata(op);
 	struct device *parent = op->dev.parent;
 	struct net_device *net_dev = bp->dev;
 	struct platform_device *qec_op;