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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-03-04 00:37:06 +0300
committerWim Van Sebroeck <wim@linux-watchdog.org>2023-04-22 13:53:50 +0300
commitb481d57bb1a29b50086130e46e83b0a8ad61604e (patch)
tree54ae5ce901846ff545995034c38a525f5f3b19c0 /drivers/watchdog/renesas_wdt.c
parent6645579b7081753e4f94946a2c98f5d4aeed9c9c (diff)
downloadlinux-b481d57bb1a29b50086130e46e83b0a8ad61604e.tar.xz
watchdog: renesas: 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/20230303213716.2123717-25-u.kleine-koenig@pengutronix.de Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog/renesas_wdt.c')
-rw-r--r--drivers/watchdog/renesas_wdt.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c
index 41d58ea5eb2f..12c41d6e5cd6 100644
--- a/drivers/watchdog/renesas_wdt.c
+++ b/drivers/watchdog/renesas_wdt.c
@@ -292,14 +292,12 @@ static int rwdt_probe(struct platform_device *pdev)
return ret;
}
-static int rwdt_remove(struct platform_device *pdev)
+static void rwdt_remove(struct platform_device *pdev)
{
struct rwdt_priv *priv = platform_get_drvdata(pdev);
watchdog_unregister_device(&priv->wdev);
pm_runtime_disable(&pdev->dev);
-
- return 0;
}
static int __maybe_unused rwdt_suspend(struct device *dev)
@@ -339,7 +337,7 @@ static struct platform_driver rwdt_driver = {
.pm = &rwdt_pm_ops,
},
.probe = rwdt_probe,
- .remove = rwdt_remove,
+ .remove_new = rwdt_remove,
};
module_platform_driver(rwdt_driver);