gpiolib: make gpiochip_set_desc_names() return void

gpiochip_set_desc_names() cannot fail so drop its return value.

Link: https://lore.kernel.org/r/20240527194613.197810-1-brgl@bgdev.plSigned-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

drivers/gpio/gpiolib.c

@@ -486,7 +486,7 @@ static struct gpio_desc *gpio_name_to_desc(const char * const name)
  *   1. Non-unique names are still accepted,
  *   2. Name collisions within the same GPIO chip are not reported.
  */
-static int gpiochip_set_desc_names(struct gpio_chip *gc)
+static void gpiochip_set_desc_names(struct gpio_chip *gc)
 {
 	struct gpio_device *gdev = gc->gpiodev;
 	int i;
@@ -505,8 +505,6 @@ static int gpiochip_set_desc_names(struct gpio_chip *gc)
 	/* Then add all names to the GPIO descriptors */
 	for (i = 0; i != gc->ngpio; ++i)
 		gdev->descs[i].name = gc->names[i];
-
-	return 0;
 }
 
 /*
@@ -1000,11 +998,9 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
 	INIT_LIST_HEAD(&gdev->pin_ranges);
 #endif
 
-	if (gc->names) {
-		ret = gpiochip_set_desc_names(gc);
-		if (ret)
-			goto err_cleanup_desc_srcu;
-	}
+	if (gc->names)
+		gpiochip_set_desc_names(gc);
+
 	ret = gpiochip_set_names(gc);
 	if (ret)
 		goto err_cleanup_desc_srcu;