[PATCH 5.15.y 2/6] ASoC: stm: stm32_sai_sub: Convert to platform remove callback returning void

[Sasha Levin <sashal@kernel.org>]

From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

[ Upstream commit a3bd37e2e2bce4fb1757a940fa985d556662ba80 ]

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/20230315150745.67084-139-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 23261f0de094 ("ASoC: stm32: sai: fix OF node leak on probe")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/stm/stm32_sai_sub.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c
index 0db307cdb825..d179400b9b09 100644
--- a/sound/soc/stm/stm32_sai_sub.c
+++ b/sound/soc/stm/stm32_sai_sub.c
@@ -1560,7 +1560,7 @@ static int stm32_sai_sub_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int stm32_sai_sub_remove(struct platform_device *pdev)
+static void stm32_sai_sub_remove(struct platform_device *pdev)
 {
 	struct stm32_sai_sub_data *sai = dev_get_drvdata(&pdev->dev);
 
@@ -1568,8 +1568,6 @@ static int stm32_sai_sub_remove(struct platform_device *pdev)
 	snd_dmaengine_pcm_unregister(&pdev->dev);
 	snd_soc_unregister_component(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-
-	return 0;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -1619,7 +1617,7 @@ static struct platform_driver stm32_sai_sub_driver = {
 		.pm = &stm32_sai_sub_pm_ops,
 	},
 	.probe = stm32_sai_sub_probe,
-	.remove = stm32_sai_sub_remove,
+	.remove_new = stm32_sai_sub_remove,
 };
 
 module_platform_driver(stm32_sai_sub_driver);
-- 
2.51.0