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dmaengine: sprd-dma: 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 ignored (apart
from emitting a warning) 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. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().

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>
Link: https://lore.kernel.org/r/20230919133207.1400430-44-u.kleine-koenig@pengutronix.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Uwe Kleine-König 2023-09-19 15:31:51 +02:00 committed by Vinod Koul
parent 9f2812a7fe
commit 8d82eb85a7
1 changed files with 2 additions and 3 deletions
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5
drivers/dma/sprd-dma.c
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@ -1232,7 +1232,7 @@ err_rpm:
return ret;
}
static int sprd_dma_remove(struct platform_device *pdev)
static void sprd_dma_remove(struct platform_device *pdev)
{
struct sprd_dma_dev *sdev = platform_get_drvdata(pdev);
struct sprd_dma_chn *c, *cn;
@ -1255,7 +1255,6 @@ static int sprd_dma_remove(struct platform_device *pdev)
pm_runtime_put_noidle(&pdev->dev);
pm_runtime_disable(&pdev->dev);
return 0;
}
static const struct of_device_id sprd_dma_match[] = {
@ -1292,7 +1291,7 @@ static const struct dev_pm_ops sprd_dma_pm_ops = {
static struct platform_driver sprd_dma_driver = {
.probe = sprd_dma_probe,
.remove = sprd_dma_remove,
.remove_new = sprd_dma_remove,
.driver = {
.name = "sprd-dma",
.of_match_table = sprd_dma_match,