leds: gpio: Utilise PTR_ERR_OR_ZERO()

Avoid a boilerplate code by using PTR_ERR_OR_ZERO() in create_gpio_led().
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20231016161005.1471768-2-andriy.shevchenko@linux.intel.comSigned-off-by: Lee Jones <lee@kernel.org>

drivers/leds/leds-gpio.c

@@ -125,16 +125,13 @@ static int create_gpio_led(const struct gpio_led *template,
 		return ret;
 
 	pinctrl = devm_pinctrl_get_select_default(led_dat->cdev.dev);
-	if (IS_ERR(pinctrl)) {
-		ret = PTR_ERR(pinctrl);
-		if (ret != -ENODEV) {
-			dev_warn(led_dat->cdev.dev,
-				 "Failed to select %pfw pinctrl: %d\n",
-				 fwnode, ret);
-		} else {
-			/* pinctrl-%d not present, not an error */
-			ret = 0;
-		}
+	ret = PTR_ERR_OR_ZERO(pinctrl);
+	/* pinctrl-%d not present, not an error */
+	if (ret == -ENODEV)
+		ret = 0;
+	if (ret) {
+		dev_warn(led_dat->cdev.dev, "Failed to select %pfw pinctrl: %d\n",
+			 fwnode, ret);
 	}
 
 	return ret;