linux-kernel - Re: [PATCH] scsi: qla2xxx: fix return of uninitialized value in rval

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Message-ID: <20201008184105.GA25478@duo.ucw.cz>
Date:   Thu, 8 Oct 2020 20:41:05 +0200
From:   Pavel Machek <pavel@...x.de>
To:     Colin King <colin.king@...onical.com>
Cc:     Nilesh Javali <njavali@...vell.com>,
        GR-QLogic-Storage-Upstream@...vell.com,
        "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>,
        Himanshu Madhani <himanshu.madhani@...cle.com>,
        Pavel Machek <pavel@...x.de>, linux-scsi@...r.kernel.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scsi: qla2xxx: fix return of uninitialized value in rval

On Thu 2020-10-08 19:32:39, Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> A previous change removed the initialization of rval and there is
> now an error where an uninitialized rval is being returned on an
> error return path. Fix this by returning -ENODEV.
> 
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: b994718760fa ("scsi: qla2xxx: Use constant when it is known")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>

Acked-by: Pavel Machek (CIP) <pavel@...x.de>

And sorry, I did patch against mainline, and this got added in -next
in the meantime.

> index ae47e0eb0311..1f9005125313 100644
> --- a/drivers/scsi/qla2xxx/qla_nvme.c
> +++ b/drivers/scsi/qla2xxx/qla_nvme.c
> @@ -561,7 +561,7 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport,
>  	vha = fcport->vha;
>  
>  	if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED))
> -		return rval;
> +		return -ENODEV;
>  
>  	if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
>  	    (qpair && !qpair->fw_started) || fcport->deleted)
> -- 
> 2.27.0
> 

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