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usb: musb: mpfs: 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 (mostly) ignored
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.

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>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230405141009.3400693-5-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Uwe Kleine-König 2023-04-05 16:10:03 +02:00 committed by Greg Kroah-Hartman
parent ace4e2637c
commit 37e7750091
1 changed files with 2 additions and 4 deletions
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6
drivers/usb/musb/mpfs.c
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@ -235,15 +235,13 @@ static int mpfs_probe(struct platform_device *pdev)
return ret;
}
static int mpfs_remove(struct platform_device *pdev)
static void mpfs_remove(struct platform_device *pdev)
{
struct mpfs_glue *glue = platform_get_drvdata(pdev);
clk_disable_unprepare(glue->clk);
platform_device_unregister(glue->musb);
usb_phy_generic_unregister(pdev);
return 0;
}
#ifdef CONFIG_OF
@ -256,7 +254,7 @@ MODULE_DEVICE_TABLE(of, mpfs_id_table);
static struct platform_driver mpfs_musb_driver = {
.probe = mpfs_probe,
.remove = mpfs_remove,
.remove_new = mpfs_remove,
.driver = {
.name = "mpfs-musb",
.of_match_table = of_match_ptr(mpfs_id_table)