mfd: asic3: Make asic3_gpio_remove() return void

Up to now asic3_gpio_remove() returns zero unconditionally. This makes it
easier to see in the caller that there is no error to handle.

This is a preparation for making platform remove callbacks return void.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220530192430.2108217-2-u.kleine-koenig@pengutronix.de

drivers/mfd/asic3.c

@@ -596,12 +596,11 @@ static __init int asic3_gpio_probe(struct platform_device *pdev,
 	return gpiochip_add_data(&asic->gpio, asic);
 }
 
-static int asic3_gpio_remove(struct platform_device *pdev)
+static void asic3_gpio_remove(struct platform_device *pdev)
 {
 	struct asic3 *asic = platform_get_drvdata(pdev);
 
 	gpiochip_remove(&asic->gpio);
-	return 0;
 }
 
 static void asic3_clk_enable(struct asic3 *asic, struct asic3_clk *clk)
@@ -1030,7 +1029,6 @@ static int __init asic3_probe(struct platform_device *pdev)
 
 static int asic3_remove(struct platform_device *pdev)
 {
-	int ret;
 	struct asic3 *asic = platform_get_drvdata(pdev);
 
 	asic3_set_register(asic, ASIC3_OFFSET(EXTCF, SELECT),
@@ -1038,9 +1036,8 @@ static int asic3_remove(struct platform_device *pdev)
 
 	asic3_mfd_remove(pdev);
 
-	ret = asic3_gpio_remove(pdev);
-	if (ret < 0)
-		return ret;
+	asic3_gpio_remove(pdev);
+
 	asic3_irq_remove(pdev);
 
 	asic3_write_register(asic, ASIC3_OFFSET(CLOCK, SEL), 0);