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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-09-20 14:57:56 +0200
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2023-09-24 04:16:43 +0200
commit7db7e7ef75b2658a2a31b69ca68d9e3b5c51702c (patch)
treeef3ca3db85a05480b3e5f05596f211fa094458ed /drivers/input/misc
parentInput: mc13783-pwrbutton - convert to platform remove callback returning void (diff)
downloadlinux-7db7e7ef75b2658a2a31b69ca68d9e3b5c51702c.tar.xz
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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>
Diffstat (limited to 'drivers/input/misc')
-rw-r--r--drivers/input/misc/palmas-pwrbutton.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/input/misc/palmas-pwrbutton.c b/drivers/input/misc/palmas-pwrbutton.c
index 7e361727b0d9..06d5972e8e84 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),