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watchdog: starfive: Check pm_runtime_enabled() before decrementing usage counter 

In the probe function, pm_runtime_put_sync() will fail on platform with
runtime PM disabled.
Check if runtime PM is enabled before calling pm_runtime_put_sync() to
fix it.

Fixes: db728ea9c7 ("drivers: watchdog: Add StarFive Watchdog driver")
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
Signed-off-by: Ley Foon Tan <leyfoon.tan@starfivetech.com>
Signed-off-by: Ji Sheng Teoh <jisheng.teoh@starfivetech.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20240119082722.1133024-1-jisheng.teoh@starfivetech.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Ji Sheng Teoh 2024-01-19 16:27:21 +08:00 committed by Wim Van Sebroeck
parent 975e4b273e
commit 8bc22a2f1b
1 changed files with 7 additions and 2 deletions
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9
drivers/watchdog/starfive-wdt.c
View File

@ -494,8 +494,13 @@ static int starfive_wdt_probe(struct platform_device *pdev)
if (ret)
goto err_exit;
if (!early_enable)
pm_runtime_put_sync(&pdev->dev);
if (!early_enable) {
if (pm_runtime_enabled(&pdev->dev)) {
ret = pm_runtime_put_sync(&pdev->dev);
if (ret)
goto err_exit;
}
}
return 0;