linux-kernel - Re: [PATCH] tty: serdev: using pm_runtime_resume_and_get instead of pm_runtime_get

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Message-ID: <30de7cc8-c75e-8a97-b1da-1ee8198bebcd@kernel.org>
Date:   Tue, 19 Apr 2022 09:59:03 +0200
From:   Jiri Slaby <jirislaby@...nel.org>
To:     cgel.zte@...il.com, robh@...nel.org
Cc:     gregkh@...uxfoundation.org, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org, Minghao Chi <chi.minghao@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: Re: [PATCH] tty: serdev: using pm_runtime_resume_and_get instead of
 pm_runtime_get_sync

On 18. 04. 22, 13:06, cgel.zte@...il.com wrote:
> From: Minghao Chi <chi.minghao@....com.cn>
> 
> Using pm_runtime_resume_and_get is more appropriate
> for simplifing code

... because it's helper doing exactly the same thing.

Reviewed-by: Jiri Slaby <jirislaby@...nel.org>

> Reported-by: Zeal Robot <zealci@....com.cn>
> Signed-off-by: Minghao Chi <chi.minghao@....com.cn>
> ---
>   drivers/tty/serdev/core.c | 6 ++----
>   1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
> index 0180e1e4e75d..e550ad3e7f2b 100644
> --- a/drivers/tty/serdev/core.c
> +++ b/drivers/tty/serdev/core.c
> @@ -156,11 +156,9 @@ int serdev_device_open(struct serdev_device *serdev)
>   	if (ret)
>   		return ret;
>   
> -	ret = pm_runtime_get_sync(&ctrl->dev);
> -	if (ret < 0) {
> -		pm_runtime_put_noidle(&ctrl->dev);
> +	ret = pm_runtime_resume_and_get(&ctrl->dev);
> +	if (ret < 0)
>   		goto err_close;
> -	}
>   
>   	return 0;
>   


-- 
js
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