net: stmmac: dwmac-sti: 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-sti.c

@@ -273,20 +273,18 @@ static int sti_dwmac_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);
 
 	dwmac = devm_kzalloc(&pdev->dev, sizeof(*dwmac), GFP_KERNEL);
-	if (!dwmac) {
-		ret = -ENOMEM;
-		goto err_remove_config_dt;
-	}
+	if (!dwmac)
+		return -ENOMEM;
 
 	ret = sti_dwmac_parse_data(dwmac, pdev);
 	if (ret) {
 		dev_err(&pdev->dev, "Unable to parse OF data\n");
-		goto err_remove_config_dt;
+		return ret;
 	}
 
 	dwmac->fix_retime_src = data->fix_retime_src;
@@ -296,7 +294,7 @@ static int sti_dwmac_probe(struct platform_device *pdev)
 
 	ret = clk_prepare_enable(dwmac->clk);
 	if (ret)
-		goto err_remove_config_dt;
+		return ret;
 
 	ret = sti_dwmac_set_mode(dwmac);
 	if (ret)
@@ -310,8 +308,6 @@ static int sti_dwmac_probe(struct platform_device *pdev)
 
 disable_clk:
 	clk_disable_unprepare(dwmac->clk);
-err_remove_config_dt:
-	stmmac_remove_config_dt(pdev, plat_dat);
 
 	return ret;
 }