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: db728ea9c7be ("drivers: watchdog: Add StarFive Watchdog driver") Signed-off-by: Xingyu Wu <xingyu.wu@xxxxxxxxxxxxxxxx> Signed-off-by: Ley Foon Tan <leyfoon.tan@xxxxxxxxxxxxxxxx> Signed-off-by: Ji Sheng Teoh <jisheng.teoh@xxxxxxxxxxxxxxxx> --- drivers/watchdog/starfive-wdt.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/watchdog/starfive-wdt.c b/drivers/watchdog/starfive-wdt.c index e28ead24c520..df68ae4acbd7 100644 --- a/drivers/watchdog/starfive-wdt.c +++ b/drivers/watchdog/starfive-wdt.c @@ -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; -- 2.43.0