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mfd: ab8500-sysctrl: 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() will be renamed to .remove().

Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20231123165627.492259-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Lee Jones <lee@kernel.org>
This commit is contained in:
Uwe Kleine-König 2023-11-23 17:56:29 +01:00 committed by Lee Jones
parent 6d461d3c68
commit fc2db18563
1 changed files with 2 additions and 4 deletions
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6
drivers/mfd/ab8500-sysctrl.c
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@ -140,14 +140,12 @@ static int ab8500_sysctrl_probe(struct platform_device *pdev)
return 0;
}
static int ab8500_sysctrl_remove(struct platform_device *pdev)
static void ab8500_sysctrl_remove(struct platform_device *pdev)
{
sysctrl_dev = NULL;
if (pm_power_off == ab8500_power_off)
pm_power_off = NULL;
return 0;
}
static const struct of_device_id ab8500_sysctrl_match[] = {
@ -161,7 +159,7 @@ static struct platform_driver ab8500_sysctrl_driver = {
.of_match_table = ab8500_sysctrl_match,
},
.probe = ab8500_sysctrl_probe,
.remove = ab8500_sysctrl_remove,
.remove_new = ab8500_sysctrl_remove,
};
static int __init ab8500_sysctrl_init(void)