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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-03-03 22:37:09 +0100
committerWim Van Sebroeck <wim@linux-watchdog.org>2023-04-22 12:53:51 +0200
commit4ead88bf860a6fb13056e964985ab0a2e78f3a9c (patch)
tree4ee7042ef242a62c08a7e3dfd382b29ff22777ad
parent3628149f6eef811e1422ff407e28fd74e6bfdf83 (diff)
watchdog: rti: 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 (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: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20230303213716.2123717-28-u.kleine-koenig@pengutronix.de Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
-rw-r--r--drivers/watchdog/rti_wdt.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/watchdog/rti_wdt.c b/drivers/watchdog/rti_wdt.c
index 6e9253761fc1..ce8f18e93aa9 100644
--- a/drivers/watchdog/rti_wdt.c
+++ b/drivers/watchdog/rti_wdt.c
@@ -304,15 +304,13 @@ err_iomap:
return ret;
}
-static int rti_wdt_remove(struct platform_device *pdev)
+static void rti_wdt_remove(struct platform_device *pdev)
{
struct rti_wdt_device *wdt = platform_get_drvdata(pdev);
watchdog_unregister_device(&wdt->wdd);
pm_runtime_put(&pdev->dev);
pm_runtime_disable(&pdev->dev);
-
- return 0;
}
static const struct of_device_id rti_wdt_of_match[] = {
@@ -327,7 +325,7 @@ static struct platform_driver rti_wdt_driver = {
.of_match_table = rti_wdt_of_match,
},
.probe = rti_wdt_probe,
- .remove = rti_wdt_remove,
+ .remove_new = rti_wdt_remove,
};
module_platform_driver(rti_wdt_driver);