linux-kernel - Re: [PATCH v2] phy: mapphone-mdm6600: return error when timed out powering up

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Date:   Mon, 16 Nov 2020 15:12:27 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     xiakaixu1987@...il.com
Cc:     kishon@...com, linux-kernel@...r.kernel.org,
        Kaixu Xia <kaixuxia@...cent.com>
Subject: Re: [PATCH v2] phy: mapphone-mdm6600: return error when timed out
 powering up

On 16-11-20, 17:11, xiakaixu1987@...il.com wrote:
> From: Kaixu Xia <kaixuxia@...cent.com>
> 
> The value of variable error is overwritten by the following call
> devm_request_threaded_irq() in phy_mdm6600_device_power_on(), actually
> we should return error when timed out powering up.
> 
> Reported-by: Tosk Robot <tencent_os_robot@...cent.com>
> Signed-off-by: Kaixu Xia <kaixuxia@...cent.com>
> ---
> v2:
>  -directly return error when timed out powering.
> 
>  drivers/phy/motorola/phy-mapphone-mdm6600.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/phy/motorola/phy-mapphone-mdm6600.c b/drivers/phy/motorola/phy-mapphone-mdm6600.c
> index 5172971f4c36..2f461c0d7276 100644
> --- a/drivers/phy/motorola/phy-mapphone-mdm6600.c
> +++ b/drivers/phy/motorola/phy-mapphone-mdm6600.c
> @@ -423,6 +423,7 @@ static int phy_mdm6600_device_power_on(struct phy_mdm6600 *ddata)
>  		ddata->enabled = false;
>  		error = -ETIMEDOUT;

or drop this
>  		dev_err(ddata->dev, "Timed out powering up\n");
> +		return error;

and do:
                return -ETIMEDOUT;


>  	}
>  
>  	/* Reconfigure mode1 GPIO as input for OOB wake */
> -- 
> 2.20.0

-- 
~Vinod