linux-kernel - Re: [PATCH v3 1/8] scsi: ufs: Fix ufshcd_probe_hba() reture value in case ufshcd_scsi_add

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Message-ID: <CAGOxZ52QU-W-MKd05cqXVRO82QMpG1Y9+AzPx4zHsZsioGS1Og@mail.gmail.com>
Date:   Sun, 19 Jan 2020 07:00:09 +0530
From:   Alim Akhtar <alim.akhtar@...il.com>
To:     Bean Huo <huobean@...il.com>
Cc:     Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>, asutoshd@...eaurora.org,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Stanley Chu <stanley.chu@...iatek.com>,
        "Bean Huo (beanhuo)" <beanhuo@...ron.com>,
        Bart Van Assche <bvanassche@....org>,
        Tomas Winkler <tomas.winkler@...el.com>,
        Can Guo <cang@...eaurora.org>, linux-scsi@...r.kernel.org,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 1/8] scsi: ufs: Fix ufshcd_probe_hba() reture value in
 case ufshcd_scsi_add_wlus() fails

Hi Bean

On Sun, Jan 19, 2020 at 5:44 AM Bean Huo <huobean@...il.com> wrote:
>
> From: Bean Huo <beanhuo@...ron.com>
>
> A non-zero error value likely being returned by ufshcd_scsi_add_wlus()
> in case of failure of adding the WLs, but ufshcd_probe_hba() doesn't
> use this value, and doesn't report this failure to upper caller.
> This patch is to fix this issue.
>
> Fixes: 2a8fa600445c ("ufs: manually add well known logical units")
> Reviewed-by: Asutosh Das <asutoshd@...eaurora.org>
> Signed-off-by: Bean Huo <beanhuo@...ron.com>
> ---
Signed-off-by: Alim Akhtar <alim.akhtar@...sung.com>

>  drivers/scsi/ufs/ufshcd.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
> index bea036ab189a..9a9085a7bcc5 100644
> --- a/drivers/scsi/ufs/ufshcd.c
> +++ b/drivers/scsi/ufs/ufshcd.c
> @@ -7032,7 +7032,8 @@ static int ufshcd_probe_hba(struct ufs_hba *hba)
>                         ufshcd_init_icc_levels(hba);
>
>                 /* Add required well known logical units to scsi mid layer */
> -               if (ufshcd_scsi_add_wlus(hba))
> +               ret = ufshcd_scsi_add_wlus(hba);
> +               if (ret)
>                         goto out;
>
>                 /* Initialize devfreq after UFS device is detected */
> --
> 2.17.1
>


-- 
Regards,
Alim