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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2023-03-04 00:37:00 +0300
committerWim Van Sebroeck <wim@linux-watchdog.org>2023-04-22 13:53:47 +0300
commit55b0fb45375eddf89d8e9f06f22de5bac0285efa (patch)
treeda098972232ff77c9202a9a764b044197280dd42
parent62b6a8507c1cdcb375549481f02177e80d51c7f1 (diff)
downloadlinux-55b0fb45375eddf89d8e9f06f22de5bac0285efa.tar.xz
watchdog: nic7018: 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/20230303213716.2123717-19-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/nic7018_wdt.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/watchdog/nic7018_wdt.c b/drivers/watchdog/nic7018_wdt.c
index 2a46cc662943..c3f0a4926667 100644
--- a/drivers/watchdog/nic7018_wdt.c
+++ b/drivers/watchdog/nic7018_wdt.c
@@ -218,7 +218,7 @@ static int nic7018_probe(struct platform_device *pdev)
return 0;
}
-static int nic7018_remove(struct platform_device *pdev)
+static void nic7018_remove(struct platform_device *pdev)
{
struct nic7018_wdt *wdt = platform_get_drvdata(pdev);
@@ -226,8 +226,6 @@ static int nic7018_remove(struct platform_device *pdev)
/* Lock WDT register */
outb(LOCK, wdt->io_base + WDT_REG_LOCK);
-
- return 0;
}
static const struct acpi_device_id nic7018_device_ids[] = {
@@ -238,7 +236,7 @@ MODULE_DEVICE_TABLE(acpi, nic7018_device_ids);
static struct platform_driver watchdog_driver = {
.probe = nic7018_probe,
- .remove = nic7018_remove,
+ .remove_new = nic7018_remove,
.driver = {
.name = KBUILD_MODNAME,
.acpi_match_table = ACPI_PTR(nic7018_device_ids),