ALSA: sparc/cs4231: 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>
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20230315150745.67084-173-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index 2942c8c..31bac35 100644 (file)
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -2069,13 +2069,11 @@ static int cs4231_probe(struct platform_device *op)
        return -ENODEV;
 }
 
-static int cs4231_remove(struct platform_device *op)
+static void cs4231_remove(struct platform_device *op)
 {
        struct snd_cs4231 *chip = dev_get_drvdata(&op->dev);
 
        snd_card_free(chip->card);
-
-       return 0;
 }
 
 static const struct of_device_id cs4231_match[] = {
@@ -2097,7 +2095,7 @@ static struct platform_driver cs4231_driver = {
                .of_match_table = cs4231_match,
        },
        .probe          = cs4231_probe,
-       .remove         = cs4231_remove,
+       .remove_new     = cs4231_remove,
 };
 
 module_platform_driver(cs4231_driver);