pwm: omap-dmtimer: 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-omap-dmtimer.c b/drivers/pwm/pwm-omap-dmtimer.c
index fa800fcf31d41a952cf564fd90548c42eda1635f..4889fbd8a4311afd33c9df8d6b5c1a991562176d 100644 (file)
--- a/drivers/pwm/pwm-omap-dmtimer.c
+++ b/drivers/pwm/pwm-omap-dmtimer.c
@@ -441,7 +441,7 @@ err_find_timer_pdev:
        return ret;
 }
 
-static int pwm_omap_dmtimer_remove(struct platform_device *pdev)
+static void pwm_omap_dmtimer_remove(struct platform_device *pdev)
 {
        struct pwm_omap_dmtimer_chip *omap = platform_get_drvdata(pdev);
 
@@ -455,8 +455,6 @@ static int pwm_omap_dmtimer_remove(struct platform_device *pdev)
        put_device(&omap->dm_timer_pdev->dev);
 
        mutex_destroy(&omap->mutex);
-
-       return 0;
 }
 
 static const struct of_device_id pwm_omap_dmtimer_of_match[] = {
@@ -471,7 +469,7 @@ static struct platform_driver pwm_omap_dmtimer_driver = {
                .of_match_table = of_match_ptr(pwm_omap_dmtimer_of_match),
        },
        .probe = pwm_omap_dmtimer_probe,
-       .remove = pwm_omap_dmtimer_remove,
+       .remove_new = pwm_omap_dmtimer_remove,
 };
 module_platform_driver(pwm_omap_dmtimer_driver);