kevin/linux
1
Fork 0
Code

ACPI: pfr_update: Convert to platform remove callback returning void

Browse Source 
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>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Uwe Kleine-König 2024-02-22 19:52:39 +01:00 committed by Rafael J. Wysocki
parent b4a48c5058
commit 74550b070d
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/acpi/pfr_update.c
View File

@ -489,13 +489,11 @@ static const struct file_operations acpi_pfru_fops = {
.llseek = noop_llseek,
};
static int acpi_pfru_remove(struct platform_device *pdev)
static void acpi_pfru_remove(struct platform_device *pdev)
{
struct pfru_device *pfru_dev = platform_get_drvdata(pdev);
misc_deregister(&pfru_dev->miscdev);
return 0;
}
static void pfru_put_idx(void *data)
@ -567,7 +565,7 @@ static struct platform_driver acpi_pfru_driver = {
.acpi_match_table = acpi_pfru_ids,
},
.probe = acpi_pfru_probe,
.remove = acpi_pfru_remove,
.remove_new = acpi_pfru_remove,
};
module_platform_driver(acpi_pfru_driver);