pinctrl: max77620: Use common error handling code in max77620_pinconf_set()

* Add a jump target so that a specific error message is stored only once
  at the end of this function implementation.

* Replace two calls of the function "dev_err" by goto statements.

* Adjust two condition checks.

This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/pinctrl-max77620.c

@@ -420,11 +420,9 @@ static int max77620_pinconf_set(struct pinctrl_dev *pctldev,
 						 MAX77620_REG_GPIO0 + pin,
 						 MAX77620_CNFG_GPIO_DRV_MASK,
 						 val);
-			if (ret < 0) {
-				dev_err(dev, "Reg 0x%02x update failed %d\n",
-					MAX77620_REG_GPIO0 + pin, ret);
-				return ret;
-			}
+			if (ret)
+				goto report_update_failure;
+
 			mpci->pin_info[pin].drv_type = val ?
 				MAX77620_PIN_PP_DRV : MAX77620_PIN_OD_DRV;
 			break;
@@ -435,11 +433,9 @@ static int max77620_pinconf_set(struct pinctrl_dev *pctldev,
 						 MAX77620_REG_GPIO0 + pin,
 						 MAX77620_CNFG_GPIO_DRV_MASK,
 						 val);
-			if (ret < 0) {
-				dev_err(dev, "Reg 0x%02x update failed %d\n",
-					MAX77620_REG_GPIO0 + pin, ret);
-				return ret;
-			}
+			if (ret)
+				goto report_update_failure;
+
 			mpci->pin_info[pin].drv_type = val ?
 				MAX77620_PIN_PP_DRV : MAX77620_PIN_OD_DRV;
 			break;
@@ -536,6 +532,11 @@ static int max77620_pinconf_set(struct pinctrl_dev *pctldev,
 	}
 
 	return 0;
+
+report_update_failure:
+	dev_err(dev, "Reg 0x%02x update failed %d\n",
+		MAX77620_REG_GPIO0 + pin, ret);
+	return ret;
 }
 
 static const struct pinconf_ops max77620_pinconf_ops = {