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extcon: intel-mrfld: Convert to platform remove callback returning void

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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.

Link: https://lore.kernel.org/lkml/7223e19152980ef553e38cf56c2b38ec099586e0.1708876186.git.u.kleine-koenig@pengutronix.de/
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Uwe Kleine-König 2024-02-25 16:54:52 +01:00 committed by Chanwoo Choi
parent 67d4b2cedc
commit 6d472f20c3
1 changed files with 2 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
drivers/extcon/extcon-intel-mrfld.c
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@ -257,13 +257,11 @@ static int mrfld_extcon_probe(struct platform_device *pdev)
return 0;
}
static int mrfld_extcon_remove(struct platform_device *pdev)
static void mrfld_extcon_remove(struct platform_device *pdev)
{
struct mrfld_extcon_data *data = platform_get_drvdata(pdev);
mrfld_extcon_sw_control(data, false);
return 0;
}
static const struct platform_device_id mrfld_extcon_id_table[] = {
@ -277,7 +275,7 @@ static struct platform_driver mrfld_extcon_driver = {
.name = "mrfld_bcove_pwrsrc",
},
.probe = mrfld_extcon_probe,
.remove = mrfld_extcon_remove,
.remove_new = mrfld_extcon_remove,
.id_table = mrfld_extcon_id_table,
};
module_platform_driver(mrfld_extcon_driver);