pwm: sifive: 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-sifive.c b/drivers/pwm/pwm-sifive.c
index 393a4b97fc19eb02cc4bd61991dba3252f890f34..5b0574f635f6f8e3ffcf584deb6fe7a8c9c69d62 100644 (file)
--- a/drivers/pwm/pwm-sifive.c
+++ b/drivers/pwm/pwm-sifive.c
@@ -313,7 +313,7 @@ disable_clk:
        return ret;
 }
 
-static int pwm_sifive_remove(struct platform_device *dev)
+static void pwm_sifive_remove(struct platform_device *dev)
 {
        struct pwm_sifive_ddata *ddata = platform_get_drvdata(dev);
        struct pwm_device *pwm;
@@ -329,8 +329,6 @@ static int pwm_sifive_remove(struct platform_device *dev)
        }
 
        clk_unprepare(ddata->clk);
-
-       return 0;
 }
 
 static const struct of_device_id pwm_sifive_of_match[] = {
@@ -341,7 +339,7 @@ MODULE_DEVICE_TABLE(of, pwm_sifive_of_match);
 
 static struct platform_driver pwm_sifive_driver = {
        .probe = pwm_sifive_probe,
-       .remove = pwm_sifive_remove,
+       .remove_new = pwm_sifive_remove,
        .driver = {
                .name = "pwm-sifive",
                .of_match_table = pwm_sifive_of_match,