From a22573740d93f31c30b57a40b334a1ec6b789f67 Mon Sep 17 00:00:00 2001
From: Dinghao Liu <dinghao.liu@zju.edu.cn>
Date: Thu, 21 May 2020 16:01:41 +0800
Subject: [PATCH] watchdog: Fix runtime PM imbalance on error
When watchdog_register_device() returns an error code,
a pairing runtime PM usage counter decrement is needed
to keep the counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200521080141.24373-1-dinghao.liu@zju.edu.cn
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
---
drivers/watchdog/omap_wdt.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 9b91882fe3c411..1616f93dfad7fc 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -273,6 +273,7 @@ static int omap_wdt_probe(struct platform_device *pdev)
ret = watchdog_register_device(&wdev->wdog);
if (ret) {
+ pm_runtime_put(wdev->dev);
pm_runtime_disable(wdev->dev);
return ret;
}
--
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