sh_eth: Use dev_err_probe() helper

Use the dev_err_probe() helper, instead of open-coding the same
operation.
Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: NNiklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: NSergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: NKieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Link: https://lore.kernel.org/r/2576cc15bdbb5be636640f491bcc087a334e2c02.1638959463.git.geert+renesas@glider.beSigned-off-by: NJakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/renesas/sh_eth.c

@@ -3368,8 +3368,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	/* MDIO bus init */
 	ret = sh_mdio_init(mdp, pd);
 	if (ret) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "MDIO init failed: %d\n", ret);
+		dev_err_probe(&pdev->dev, ret, "MDIO init failed\n");
 		goto out_release;
 	}