net: stmmac: dwmac-rk: use devm_stmmac_probe_config_dt()

Simplify the driver's probe() function by using the devres
variant of stmmac_probe_config_dt().
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c

@@ -1824,7 +1824,7 @@ static int rk_gmac_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	plat_dat = stmmac_probe_config_dt(pdev, stmmac_res.mac);
+	plat_dat = devm_stmmac_probe_config_dt(pdev, stmmac_res.mac);
 	if (IS_ERR(plat_dat))
 		return PTR_ERR(plat_dat);
 
@@ -1836,18 +1836,16 @@ static int rk_gmac_probe(struct platform_device *pdev)
 	plat_dat->fix_mac_speed = rk_fix_speed;
 
 	plat_dat->bsp_priv = rk_gmac_setup(pdev, plat_dat, data);
-	if (IS_ERR(plat_dat->bsp_priv)) {
-		ret = PTR_ERR(plat_dat->bsp_priv);
-		goto err_remove_config_dt;
-	}
+	if (IS_ERR(plat_dat->bsp_priv))
+		return PTR_ERR(plat_dat->bsp_priv);
 
 	ret = rk_gmac_clk_init(plat_dat);
 	if (ret)
-		goto err_remove_config_dt;
+		return ret;
 
 	ret = rk_gmac_powerup(plat_dat->bsp_priv);
 	if (ret)
-		goto err_remove_config_dt;
+		return ret;
 
 	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
 	if (ret)
@@ -1857,8 +1855,6 @@ static int rk_gmac_probe(struct platform_device *pdev)
 
 err_gmac_powerdown:
 	rk_gmac_powerdown(plat_dat->bsp_priv);
-err_remove_config_dt:
-	stmmac_remove_config_dt(pdev, plat_dat);
 
 	return ret;
 }