[PATCH 16/23] gpio: rockchip: Convert to platform remove callback returning void

[Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>]

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.

To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new(), which already returns void. Eventually after all drivers
are converted, .remove_new() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
 drivers/gpio/gpio-rockchip.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index b35b9604413f..23040a8cea34 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -778,14 +778,12 @@ static int rockchip_gpio_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int rockchip_gpio_remove(struct platform_device *pdev)
+static void rockchip_gpio_remove(struct platform_device *pdev)
 {
 	struct rockchip_pin_bank *bank = platform_get_drvdata(pdev);
 
 	clk_disable_unprepare(bank->clk);
 	gpiochip_remove(&bank->gpio_chip);
-
-	return 0;
 }
 
 static const struct of_device_id rockchip_gpio_match[] = {
@@ -796,7 +794,7 @@ static const struct of_device_id rockchip_gpio_match[] = {
 
 static struct platform_driver rockchip_gpio_driver = {
 	.probe		= rockchip_gpio_probe,
-	.remove		= rockchip_gpio_remove,
+	.remove_new	= rockchip_gpio_remove,
 	.driver		= {
 		.name	= "rockchip-gpio",
 		.of_match_table = rockchip_gpio_match,
-- 
2.40.1