[PATCH 136/173] ASoC: stm: stm32_adfsdm: Convert to platform remove callback returning void

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Wed Mar 15 08:07:08 PDT 2023


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/stm/stm32_adfsdm.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c
index 837c1848d9bf..a8fff7378641 100644
--- a/sound/soc/stm/stm32_adfsdm.c
+++ b/sound/soc/stm/stm32_adfsdm.c
@@ -386,12 +386,10 @@ static int stm32_adfsdm_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int stm32_adfsdm_remove(struct platform_device *pdev)
+static void stm32_adfsdm_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_component(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-
-	return 0;
 }
 
 static struct platform_driver stm32_adfsdm_driver = {
@@ -400,7 +398,7 @@ static struct platform_driver stm32_adfsdm_driver = {
 		   .of_match_table = stm32_adfsdm_of_match,
 		   },
 	.probe = stm32_adfsdm_probe,
-	.remove = stm32_adfsdm_remove,
+	.remove_new = stm32_adfsdm_remove,
 };
 
 module_platform_driver(stm32_adfsdm_driver);
-- 
2.39.2




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