From 8bc22a2f1bf0f402029087fcb53130233a544fed Mon Sep 17 00:00:00 2001 From: Ji Sheng Teoh Date: Fri, 19 Jan 2024 16:27:21 +0800 Subject: 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: db728ea9c7be ("drivers: watchdog: Add StarFive Watchdog driver") Signed-off-by: Xingyu Wu Signed-off-by: Ley Foon Tan Signed-off-by: Ji Sheng Teoh Reviewed-by: Guenter Roeck Link: https://lore.kernel.org/r/20240119082722.1133024-1-jisheng.teoh@starfivetech.com Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/starfive-wdt.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers/watchdog') 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; -- cgit v1.2.3