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media: m2m-deinterlace: 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>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Uwe Kleine-König 2023-03-26 16:30:50 +02:00 committed by Hans Verkuil
parent 3c56717a58
commit c65cee0b87
1 changed files with 2 additions and 4 deletions
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6
drivers/media/platform/m2m-deinterlace.c
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@ -984,7 +984,7 @@ rel_dma:
return ret;
}
static int deinterlace_remove(struct platform_device *pdev)
static void deinterlace_remove(struct platform_device *pdev)
{
struct deinterlace_dev *pcdev = platform_get_drvdata(pdev);
@ -993,13 +993,11 @@ static int deinterlace_remove(struct platform_device *pdev)
video_unregister_device(&pcdev->vfd);
v4l2_device_unregister(&pcdev->v4l2_dev);
dma_release_channel(pcdev->dma_chan);
return 0;
}
static struct platform_driver deinterlace_pdrv = {
.probe = deinterlace_probe,
.remove = deinterlace_remove,
.remove_new = deinterlace_remove,
.driver = {
.name = MEM2MEM_NAME,
},