net: cpsw: Replace pr_err by dev_err

Use dev_err instead of pr_err.

Signed-off-by: Markus Pargmann <[e-mail]>
Reviewed-by: Wolfram Sang <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/ethernet/ti/cpsw.c

···
 		mdio = of_find_device_by_node(mdio_node);
 		of_node_put(mdio_node);
 		if (!mdio) {
-			pr_err("Missing mdio platform device\n");
+			dev_err(&pdev->dev, "Missing mdio platform device\n");
 			return -EINVAL;
 		}
 		snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),