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authorGuenter Roeck <linux@roeck-us.net>2023-03-04 17:56:53 +0100
committerWim Van Sebroeck <wim@linux-watchdog.org>2023-04-22 12:53:39 +0200
commit89baf2522ba3a82b7aa61dba023a8092b8ff1d5b (patch)
tree66ef9729ea63ac9919eb36d48714e08f006d41c0
parentwatchdog: s3c2410_wdt: Use devm_clk_get[_optional]_enabled() helpers (diff)
downloadlinux-89baf2522ba3a82b7aa61dba023a8092b8ff1d5b.tar.xz
linux-89baf2522ba3a82b7aa61dba023a8092b8ff1d5b.zip
watchdog: s3c2410_wdt: Use devm_add_action_or_reset() to disable watchdog
Use devm_add_action_or_reset() to disable the watchdog when the driver is removed to simplify the code. With this in place, we can use devm_watchdog_register_device() to register the watchdog, and the removal function is no longer necessary. Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230304165653.2179835-2-linux@roeck-us.net Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
-rw-r--r--drivers/watchdog/s3c2410_wdt.c33
1 files changed, 11 insertions, 22 deletions
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index a1fcb79b0b7c..58b262ca4e88 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -623,6 +623,11 @@ s3c2410_get_wdt_drv_data(struct platform_device *pdev)
return variant;
}
+static void s3c2410wdt_wdt_disable_action(void *data)
+{
+ s3c2410wdt_enable(data, false);
+}
+
static int s3c2410wdt_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -724,13 +729,17 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
s3c2410wdt_stop(&wdt->wdt_device);
}
- ret = watchdog_register_device(&wdt->wdt_device);
+ ret = devm_watchdog_register_device(dev, &wdt->wdt_device);
if (ret)
return ret;
ret = s3c2410wdt_enable(wdt, true);
if (ret < 0)
- goto err_unregister;
+ return ret;
+
+ ret = devm_add_action_or_reset(dev, s3c2410wdt_wdt_disable_action, wdt);
+ if (ret)
+ return ret;
platform_set_drvdata(pdev, wdt);
@@ -744,25 +753,6 @@ static int s3c2410wdt_probe(struct platform_device *pdev)
(wtcon & S3C2410_WTCON_INTEN) ? "en" : "dis");
return 0;
-
- err_unregister:
- watchdog_unregister_device(&wdt->wdt_device);
-
- return ret;
-}
-
-static int s3c2410wdt_remove(struct platform_device *dev)
-{
- int ret;
- struct s3c2410_wdt *wdt = platform_get_drvdata(dev);
-
- ret = s3c2410wdt_enable(wdt, false);
- if (ret < 0)
- return ret;
-
- watchdog_unregister_device(&wdt->wdt_device);
-
- return 0;
}
static void s3c2410wdt_shutdown(struct platform_device *dev)
@@ -817,7 +807,6 @@ static DEFINE_SIMPLE_DEV_PM_OPS(s3c2410wdt_pm_ops,
static struct platform_driver s3c2410wdt_driver = {
.probe = s3c2410wdt_probe,
- .remove = s3c2410wdt_remove,
.shutdown = s3c2410wdt_shutdown,
.id_table = s3c2410_wdt_ids,
.driver = {