net: stmmac: dwmac-dwc-qos-eth: 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-dwc-qos-eth.c

@@ -435,15 +435,14 @@ static int dwc_eth_dwmac_probe(struct platform_device *pdev)
 	if (IS_ERR(stmmac_res.addr))
 		return PTR_ERR(stmmac_res.addr);
 
-	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);
 
 	ret = data->probe(pdev, plat_dat, &stmmac_res);
 	if (ret < 0) {
 		dev_err_probe(&pdev->dev, ret, "failed to probe subdriver\n");
-
-		goto remove_config;
+		return ret;
 	}
 
 	ret = dwc_eth_dwmac_config_dt(pdev, plat_dat);
@@ -458,25 +457,17 @@ static int dwc_eth_dwmac_probe(struct platform_device *pdev)
 
 remove:
 	data->remove(pdev);
-remove_config:
-	stmmac_remove_config_dt(pdev, plat_dat);
 
 	return ret;
 }
 
 static void dwc_eth_dwmac_remove(struct platform_device *pdev)
 {
-	struct net_device *ndev = platform_get_drvdata(pdev);
-	struct stmmac_priv *priv = netdev_priv(ndev);
-	const struct dwc_eth_dwmac_data *data;
-
-	data = device_get_match_data(&pdev->dev);
+	const struct dwc_eth_dwmac_data *data = device_get_match_data(&pdev->dev);
 
 	stmmac_dvr_remove(&pdev->dev);
 
 	data->remove(pdev);
-
-	stmmac_remove_config_dt(pdev, priv->plat);
 }
 
 static const struct of_device_id dwc_eth_dwmac_match[] = {