regulator: s5m8767: Check pdata->buck[2|3|4]_gpiodvs earlier

If we need to ensure only one of the buck[2|3|4]_gpiodvs can be specificed,
check them earlier.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/s5m8767.c

@@ -547,6 +547,27 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
+	if (pdata->buck2_gpiodvs) {
+		if (pdata->buck3_gpiodvs || pdata->buck4_gpiodvs) {
+			dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
+			return -EINVAL;
+		}
+	}
+
+	if (pdata->buck3_gpiodvs) {
+		if (pdata->buck2_gpiodvs || pdata->buck4_gpiodvs) {
+			dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
+			return -EINVAL;
+		}
+	}
+
+	if (pdata->buck4_gpiodvs) {
+		if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs) {
+			dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
+			return -EINVAL;
+		}
+	}
+
 	s5m8767 = devm_kzalloc(&pdev->dev, sizeof(struct s5m8767_info),
 				GFP_KERNEL);
 	if (!s5m8767)
@@ -640,30 +661,6 @@ static __devinit int s5m8767_pmic_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (pdata->buck2_gpiodvs) {
-		if (pdata->buck3_gpiodvs || pdata->buck4_gpiodvs) {
-			dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
-			ret = -EINVAL;
-			return ret;
-		}
-	}
-
-	if (pdata->buck3_gpiodvs) {
-		if (pdata->buck2_gpiodvs || pdata->buck4_gpiodvs) {
-			dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
-			ret = -EINVAL;
-			return ret;
-		}
-	}
-
-	if (pdata->buck4_gpiodvs) {
-		if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs) {
-			dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
-			ret = -EINVAL;
-			return ret;
-		}
-	}
-
 	s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK2CTRL,
 			(pdata->buck2_gpiodvs) ? (1 << 1) : (0 << 1), 1 << 1);
 	s5m_reg_update(s5m8767->iodev, S5M8767_REG_BUCK3CTRL,