[PATCH 106/173] ASoC: mediatek: mtk-btcvsd: Convert to platform remove callback returning void

[Uwe Kleine-König]

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 at pengutronix.de>
---
 sound/soc/mediatek/common/mtk-btcvsd.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sound/soc/mediatek/common/mtk-btcvsd.c b/sound/soc/mediatek/common/mtk-btcvsd.c
index 1c28b41e4311..1ba0633e542f 100644
--- a/sound/soc/mediatek/common/mtk-btcvsd.c
+++ b/sound/soc/mediatek/common/mtk-btcvsd.c
@@ -1387,13 +1387,12 @@ static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int mtk_btcvsd_snd_remove(struct platform_device *pdev)
+static void mtk_btcvsd_snd_remove(struct platform_device *pdev)
 {
 	struct mtk_btcvsd_snd *btcvsd = dev_get_drvdata(&pdev->dev);
 
 	iounmap(btcvsd->bt_pkv_base);
 	iounmap(btcvsd->bt_sram_bank2_base);
-	return 0;
 }
 
 static const struct of_device_id mtk_btcvsd_snd_dt_match[] = {
@@ -1408,7 +1407,7 @@ static struct platform_driver mtk_btcvsd_snd_driver = {
 		.of_match_table = mtk_btcvsd_snd_dt_match,
 	},
 	.probe = mtk_btcvsd_snd_probe,
-	.remove = mtk_btcvsd_snd_remove,
+	.remove_new = mtk_btcvsd_snd_remove,
 };
 
 module_platform_driver(mtk_btcvsd_snd_driver);
-- 
2.39.2