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usb: c67x00-drv: 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() is
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/20230517230239.187727-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Uwe Kleine-König 2023-05-18 01:01:03 +02:00 committed by Greg Kroah-Hartman
parent ee4d21aa4a
commit e8fa2dd9e2
1 changed files with 2 additions and 4 deletions
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6
drivers/usb/c67x00/c67x00-drv.c
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@ -177,7 +177,7 @@ static int c67x00_drv_probe(struct platform_device *pdev)
return ret;
}
static int c67x00_drv_remove(struct platform_device *pdev)
static void c67x00_drv_remove(struct platform_device *pdev)
{
struct c67x00_device *c67x00 = platform_get_drvdata(pdev);
struct resource *res;
@ -197,13 +197,11 @@ static int c67x00_drv_remove(struct platform_device *pdev)
release_mem_region(res->start, resource_size(res));
kfree(c67x00);
return 0;
}
static struct platform_driver c67x00_driver = {
.probe = c67x00_drv_probe,
.remove = c67x00_drv_remove,
.remove_new = c67x00_drv_remove,
.driver = {
.name = "c67x00",
},