From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Mon, 18 Sep 2023 08:59:35 +0000 (+0200)
Subject: hwmon: (i5k_amb) Convert to platform remove callback returning void
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=62f5e95d409c20a946942f65455e17c9c59b75fd;p=linux.git

hwmon: (i5k_amb) 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/20230918085951.1234172-9-u.kleine-koenig@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---

diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c
index 783fa936e4d16..ff48913fe6bf6 100644
--- a/drivers/hwmon/i5k_amb.c
+++ b/drivers/hwmon/i5k_amb.c
@@ -555,7 +555,7 @@ err:
 	return res;
 }
 
-static int i5k_amb_remove(struct platform_device *pdev)
+static void i5k_amb_remove(struct platform_device *pdev)
 {
 	int i;
 	struct i5k_amb_data *data = platform_get_drvdata(pdev);
@@ -568,7 +568,6 @@ static int i5k_amb_remove(struct platform_device *pdev)
 	iounmap(data->amb_mmio);
 	release_mem_region(data->amb_base, data->amb_len);
 	kfree(data);
-	return 0;
 }
 
 static struct platform_driver i5k_amb_driver = {
@@ -576,7 +575,7 @@ static struct platform_driver i5k_amb_driver = {
 		.name = DRVNAME,
 	},
 	.probe = i5k_amb_probe,
-	.remove = i5k_amb_remove,
+	.remove_new = i5k_amb_remove,
 };
 
 static int __init i5k_amb_init(void)