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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2023-09-20 14:57:55 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2023-09-23 19:16:43 -0700 |
| commit | 9b6619667e9ecc771d8d6379311793d8823dad70 (patch) | |
| tree | f1db3e1d818404670ef5ed15e869dee0e0bd4987 | |
| parent | 3254392ead69ba6b063b3a3871f69c6bf4bb5ccb (diff) | |
| download | input-9b6619667e9ecc771d8d6379311793d8823dad70.tar.gz | |
Input: mc13783-pwrbutton - 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.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230920125829.1478827-19-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| -rw-r--r-- | drivers/input/misc/mc13783-pwrbutton.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/input/misc/mc13783-pwrbutton.c b/drivers/input/misc/mc13783-pwrbutton.c index 0636eee4bb6cee..1c8c939638f6cd 100644 --- a/drivers/input/misc/mc13783-pwrbutton.c +++ b/drivers/input/misc/mc13783-pwrbutton.c @@ -229,7 +229,7 @@ free_input_dev: return err; } -static int mc13783_pwrbutton_remove(struct platform_device *pdev) +static void mc13783_pwrbutton_remove(struct platform_device *pdev) { struct mc13783_pwrb *priv = platform_get_drvdata(pdev); const struct mc13xxx_buttons_platform_data *pdata; @@ -249,13 +249,11 @@ static int mc13783_pwrbutton_remove(struct platform_device *pdev) input_unregister_device(priv->pwr); kfree(priv); - - return 0; } static struct platform_driver mc13783_pwrbutton_driver = { .probe = mc13783_pwrbutton_probe, - .remove = mc13783_pwrbutton_remove, + .remove_new = mc13783_pwrbutton_remove, .driver = { .name = "mc13783-pwrbutton", }, |