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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2023-09-20 14:57:56 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2023-09-23 19:16:43 -0700 |
| commit | 7db7e7ef75b2658a2a31b69ca68d9e3b5c51702c (patch) | |
| tree | ef3ca3db85a05480b3e5f05596f211fa094458ed | |
| parent | 9b6619667e9ecc771d8d6379311793d8823dad70 (diff) | |
| download | input-7db7e7ef75b2658a2a31b69ca68d9e3b5c51702c.tar.gz | |
Input: palmas-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/20230920125829.1478827-20-u.kleine-koenig@pengutronix.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| -rw-r--r-- | drivers/input/misc/palmas-pwrbutton.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/input/misc/palmas-pwrbutton.c b/drivers/input/misc/palmas-pwrbutton.c index 7e361727b0d980..06d5972e8e84dc 100644 --- a/drivers/input/misc/palmas-pwrbutton.c +++ b/drivers/input/misc/palmas-pwrbutton.c @@ -245,7 +245,7 @@ err_free_mem: * * Return: 0 */ -static int palmas_pwron_remove(struct platform_device *pdev) +static void palmas_pwron_remove(struct platform_device *pdev) { struct palmas_pwron *pwron = platform_get_drvdata(pdev); @@ -254,8 +254,6 @@ static int palmas_pwron_remove(struct platform_device *pdev) input_unregister_device(pwron->input_dev); kfree(pwron); - - return 0; } /** @@ -312,7 +310,7 @@ MODULE_DEVICE_TABLE(of, of_palmas_pwr_match); static struct platform_driver palmas_pwron_driver = { .probe = palmas_pwron_probe, - .remove = palmas_pwron_remove, + .remove_new = palmas_pwron_remove, .driver = { .name = "palmas_pwrbutton", .of_match_table = of_match_ptr(of_palmas_pwr_match), |