linux-kernel - Re: [PATCH v3] scsi: ufs: use an generic error code in ufshcd_set_dev_pwr

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Message-ID: <ddb72689-fd3b-5fc7-6558-da55ff6957d8@acm.org>
Date:   Fri, 21 Jan 2022 16:41:13 -0800
From:   Bart Van Assche <bvanassche@....org>
To:     Kiwoong Kim <kwmad.kim@...sung.com>, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, alim.akhtar@...sung.com,
        avri.altman@....com, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, beanhuo@...ron.com,
        cang@...eaurora.org, adrian.hunter@...el.com, sc.suh@...sung.com,
        hy50.seo@...sung.com, sh425.lee@...sung.com,
        bhoon95.kim@...sung.com, vkumar.1997@...sung.com
Subject: Re: [PATCH v3] scsi: ufs: use an generic error code in
 ufshcd_set_dev_pwr_mode

On 1/20/22 21:33, Kiwoong Kim wrote:
> v2 -> v3: change the value of ret only if it's positive
> v1 -> v2: modify the comment of ufshcd_set_dev_pwr_mode
> 
> The return value of ufshcd_set_dev_pwr_mode is given to
> device pm core. However, the function currently returns a result
> in scsi command and the device pm core doesn't understand it.
> It might lead to unexpected behaviors of user land. I found
> the return value led to platform reset in Android.
> 
> This patch is to use an generic code for SSU failures.

Reviewed-by: Bart Van Assche <bvanassche@....org>