| Message ID | 20230304133028.2135435-16-u.kleine-koenig@pengutronix.de |
|---|---|
| State | Accepted |
| Headers | show |
| Series | rtc: Convert to platform remove callback returning void | expand |
On 04/03/2023 14:30, Uwe Kleine-König wrote: > 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> > --- > drivers/rtc/rtc-max77686.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Best regards, Krzysztof
diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c index b0250d91fb00..35a6021d9ba4 100644 --- a/drivers/rtc/rtc-max77686.c +++ b/drivers/rtc/rtc-max77686.c @@ -806,14 +806,12 @@ static int max77686_rtc_probe(struct platform_device *pdev) return ret; } -static int max77686_rtc_remove(struct platform_device *pdev) +static void max77686_rtc_remove(struct platform_device *pdev) { struct max77686_rtc_info *info = platform_get_drvdata(pdev); free_irq(info->virq, info); regmap_del_irq_chip(info->rtc_irq, info->rtc_irq_data); - - return 0; } #ifdef CONFIG_PM_SLEEP @@ -877,7 +875,7 @@ static struct platform_driver max77686_rtc_driver = { .pm = &max77686_rtc_pm_ops, }, .probe = max77686_rtc_probe, - .remove = max77686_rtc_remove, + .remove_new = max77686_rtc_remove, .id_table = rtc_id, };
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> --- drivers/rtc/rtc-max77686.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)