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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-12-07 17:09:30 +0300
committerGuenter Roeck <linux@roeck-us.net>2024-01-02 19:44:57 +0300
commit5c2833c8824d6fb5c9de155f7a9cc4e8afc6e1e8 (patch)
tree8db7c3cdf508335ddc4ee66dc632becbe8c694f7 /drivers/hwmon
parent3b018391b6158039ee459c9d8ce203fed408cf51 (diff)
downloadlinux-5c2833c8824d6fb5c9de155f7a9cc4e8afc6e1e8.tar.xz
hwmon: (smsc47m1) 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() 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> Link: https://lore.kernel.org/r/a732270539ef63094a32d0ff582f78e640caf3e4.1701957841.git.u.kleine-koenig@pengutronix.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/smsc47m1.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c
index 29ea8fb4f353..bda39a5a5d4c 100644
--- a/drivers/hwmon/smsc47m1.c
+++ b/drivers/hwmon/smsc47m1.c
@@ -840,14 +840,12 @@ error_remove_files:
return err;
}
-static int __exit smsc47m1_remove(struct platform_device *pdev)
+static void __exit smsc47m1_remove(struct platform_device *pdev)
{
struct smsc47m1_data *data = platform_get_drvdata(pdev);
hwmon_device_unregister(data->hwmon_dev);
smsc47m1_remove_files(&pdev->dev);
-
- return 0;
}
/*
@@ -860,7 +858,7 @@ static struct platform_driver smsc47m1_driver __refdata = {
.driver = {
.name = DRVNAME,
},
- .remove = __exit_p(smsc47m1_remove),
+ .remove_new = __exit_p(smsc47m1_remove),
};
static int __init smsc47m1_device_add(unsigned short address,