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watchdog: Fix runtime PM imbalance on error

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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>
This commit is contained in:
Dinghao Liu
2020-05-21 16:01:41 +08:00
committed by Wim Van Sebroeck
parent 5e31896a33
commit a22573740d
1 changed files with 1 additions and 0 deletions
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1
drivers/watchdog/omap_wdt.c
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@@ -273,6 +273,7 @@ static int omap_wdt_probe(struct platform_device *pdev)
ret = watchdog_register_device(&wdev->wdog); ret = watchdog_register_device(&wdev->wdog);
if (ret) { if (ret) {
pm_runtime_put(wdev->dev);
pm_runtime_disable(wdev->dev); pm_runtime_disable(wdev->dev);
return ret; return ret;
} }