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ALSA: sh_dac_audio: 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/20230315150745.67084-13-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Uwe Kleine-König 2023-03-15 16:05:04 +01:00 committed by Mark Brown
parent de0f49b86d
commit a0f4aa0a9f
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 3 deletions
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5
sound/sh/sh_dac_audio.c
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@ -257,10 +257,9 @@ static int snd_sh_dac_pcm(struct snd_sh_dac *chip, int device)
/* driver .remove -- destructor */
static int snd_sh_dac_remove(struct platform_device *devptr)
static void snd_sh_dac_remove(struct platform_device *devptr)
{
snd_card_free(platform_get_drvdata(devptr));
return 0;
}
/* free -- it has been defined by create */
@ -403,7 +402,7 @@ probe_error:
*/
static struct platform_driver sh_dac_driver = {
.probe = snd_sh_dac_probe,
.remove = snd_sh_dac_remove,
.remove_new = snd_sh_dac_remove,
.driver = {
.name = "dac_audio",
},