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mfd: stm32-timers: Convert to platform remove callback returning void

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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() will be 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/20231123165627.492259-16-u.kleine-koenig@pengutronix.de
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Uwe Kleine-König 2023-11-23 17:56:43 +01:00 • committed by Lee Jones
parent c20fddf7ac
commit eea669cbcb
1 changed files with 2 additions and 4 deletions
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6
drivers/mfd/stm32-timers.c
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@ -306,7 +306,7 @@ static int stm32_timers_probe(struct platform_device *pdev)
return ret;
}
static int stm32_timers_remove(struct platform_device *pdev)
static void stm32_timers_remove(struct platform_device *pdev)
{
struct stm32_timers *ddata = platform_get_drvdata(pdev);
@ -316,8 +316,6 @@ static int stm32_timers_remove(struct platform_device *pdev)
*/
of_platform_depopulate(&pdev->dev);
stm32_timers_dma_remove(&pdev->dev, ddata);
return 0;
}
static const struct of_device_id stm32_timers_of_match[] = {
@ -328,7 +326,7 @@ MODULE_DEVICE_TABLE(of, stm32_timers_of_match);
static struct platform_driver stm32_timers_driver = {
.probe = stm32_timers_probe,
.remove = stm32_timers_remove,
.remove_new = stm32_timers_remove,
.driver = {
.name = "stm32-timers",
.of_match_table = stm32_timers_of_match,