pwm: lpc18xx-sct: Convert to platform remove callback returning void

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 (mostly) ignored
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.

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@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

diff --git a/drivers/pwm/pwm-lpc18xx-sct.c b/drivers/pwm/pwm-lpc18xx-sct.c
index 378e1df944dc0b689cecbde03fea3ca7685d6b7d..b9bf5b366f4b1e95b375174497f7a948640c448b 100644 (file)
--- a/drivers/pwm/pwm-lpc18xx-sct.c
+++ b/drivers/pwm/pwm-lpc18xx-sct.c
@@ -449,7 +449,7 @@ disable_pwmclk:
        return ret;
 }
 
-static int lpc18xx_pwm_remove(struct platform_device *pdev)
+static void lpc18xx_pwm_remove(struct platform_device *pdev)
 {
        struct lpc18xx_pwm_chip *lpc18xx_pwm = platform_get_drvdata(pdev);
        u32 val;
@@ -461,8 +461,6 @@ static int lpc18xx_pwm_remove(struct platform_device *pdev)
                           val | LPC18XX_PWM_CTRL_HALT);
 
        clk_disable_unprepare(lpc18xx_pwm->pwm_clk);
-
-       return 0;
 }
 
 static struct platform_driver lpc18xx_pwm_driver = {
@@ -471,7 +469,7 @@ static struct platform_driver lpc18xx_pwm_driver = {
                .of_match_table = lpc18xx_pwm_of_match,
        },
        .probe = lpc18xx_pwm_probe,
-       .remove = lpc18xx_pwm_remove,
+       .remove_new = lpc18xx_pwm_remove,
 };
 module_platform_driver(lpc18xx_pwm_driver);