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w1: mxc_w1: 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.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/d805f3ccc5bc59584c2575b7b33a56a33f6812c7.1708340114.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
This commit is contained in:
Uwe Kleine-König 2024-02-19 21:28:35 +01:00 committed by Krzysztof Kozlowski
parent a3c0880436
commit 63724bbfb1
1 changed files with 2 additions and 4 deletions
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6
drivers/w1/masters/mxc_w1.c
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@ -151,15 +151,13 @@ out_disable_clk:
/*
* disassociate the w1 device from the driver
*/
static int mxc_w1_remove(struct platform_device *pdev)
static void mxc_w1_remove(struct platform_device *pdev)
{
struct mxc_w1_device *mdev = platform_get_drvdata(pdev);
w1_remove_master_device(&mdev->bus_master);
clk_disable_unprepare(mdev->clk);
return 0;
}
static const struct of_device_id mxc_w1_dt_ids[] = {
@ -174,7 +172,7 @@ static struct platform_driver mxc_w1_driver = {
.of_match_table = mxc_w1_dt_ids,
},
.probe = mxc_w1_probe,
.remove = mxc_w1_remove,
.remove_new = mxc_w1_remove,
};
module_platform_driver(mxc_w1_driver);