net: mvpp2: Improve two size determinations in mvpp2_probe()

Replace the specification of two data structures by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/mvpp2.c

@@ -6873,7 +6873,7 @@ static int mvpp2_probe(struct platform_device *pdev)
 	int port_count, cpu;
 	int err;
 
-	priv = devm_kzalloc(&pdev->dev, sizeof(struct mvpp2), GFP_KERNEL);
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
@@ -6970,7 +6970,7 @@ static int mvpp2_probe(struct platform_device *pdev)
 	}
 
 	priv->port_list = devm_kcalloc(&pdev->dev, port_count,
-				      sizeof(struct mvpp2_port *),
+				       sizeof(*priv->port_list),
 				       GFP_KERNEL);
 	if (!priv->port_list) {
 		err = -ENOMEM;