| Message ID | 20230304133028.2135435-4-u.kleine-koenig@pengutronix.de |
|---|---|
| State | Accepted |
| Headers | show |
| Series | rtc: Convert to platform remove callback returning void | expand |
On Sat, Mar 4, 2023 at 2:30 PM Uwe Kleine-König <u.kleine-koenig@pengutronix.de> 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> Acked-by: Linus Walleij <linus.walleij@linaro.org> Yours, Linus Walleij
diff --git a/drivers/rtc/rtc-ab8500.c b/drivers/rtc/rtc-ab8500.c index ea33e149d545..75bb2ac9005c 100644 --- a/drivers/rtc/rtc-ab8500.c +++ b/drivers/rtc/rtc-ab8500.c @@ -392,12 +392,10 @@ static int ab8500_rtc_probe(struct platform_device *pdev) return devm_rtc_register_device(rtc); } -static int ab8500_rtc_remove(struct platform_device *pdev) +static void ab8500_rtc_remove(struct platform_device *pdev) { dev_pm_clear_wake_irq(&pdev->dev); device_init_wakeup(&pdev->dev, false); - - return 0; } static struct platform_driver ab8500_rtc_driver = { @@ -405,7 +403,7 @@ static struct platform_driver ab8500_rtc_driver = { .name = "ab8500-rtc", }, .probe = ab8500_rtc_probe, - .remove = ab8500_rtc_remove, + .remove_new = ab8500_rtc_remove, .id_table = ab85xx_rtc_ids, };
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-ab8500.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)