linux-kernel - Re: [PATCHv2 5/5] watchdog: rti-wdt: balance pm runtime enable calls

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Date:   Sun, 5 Jul 2020 08:08:25 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Tero Kristo <t-kristo@...com>, wim@...ux-watchdog.org,
        linux-watchdog@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, jan.kiszka@...mens.com
Subject: Re: [PATCHv2 5/5] watchdog: rti-wdt: balance pm runtime enable calls

On 7/3/20 5:04 AM, Tero Kristo wrote:
> PM runtime should be disabled in the fail path of probe and when
> the driver is removed.
> 
> Fixes: 2d63908bdbfb ("watchdog: Add K3 RTI watchdog support")
> Signed-off-by: Tero Kristo <t-kristo@...com>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
>  drivers/watchdog/rti_wdt.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/watchdog/rti_wdt.c b/drivers/watchdog/rti_wdt.c
> index 987e5a798cb4..7007445da80b 100644
> --- a/drivers/watchdog/rti_wdt.c
> +++ b/drivers/watchdog/rti_wdt.c
> @@ -304,6 +304,7 @@ static int rti_wdt_probe(struct platform_device *pdev)
>  
>  err_iomap:
>  	pm_runtime_put_sync(&pdev->dev);
> +	pm_runtime_disable(&pdev->dev);
>  
>  	return ret;
>  }
> @@ -314,6 +315,7 @@ static int rti_wdt_remove(struct platform_device *pdev)
>  
>  	watchdog_unregister_device(&wdt->wdd);
>  	pm_runtime_put(&pdev->dev);
> +	pm_runtime_disable(&pdev->dev);
>  
>  	return 0;
>  }
>