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Re: [PATCH] lpfc: Fix possible NULL pointer dereference

Started byJames Smart <james.smart@broadcom.com>
First post2016-07-28 17:00 +0200
Last post2016-07-29 10:10 +0200
Articles 3 — 3 participants

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  Re: [PATCH] lpfc: Fix possible NULL pointer dereference James Smart <james.smart@broadcom.com> - 2016-07-28 17:00 +0200
    Re: [PATCH] lpfc: Fix possible NULL pointer dereference "Martin K. Petersen" <martin.petersen@oracle.com> - 2016-07-29 03:30 +0200
      Re: [PATCH] lpfc: Fix possible NULL pointer dereference Johannes Thumshirn <jthumshirn@suse.de> - 2016-07-29 10:10 +0200

#1451970 — Re: [PATCH] lpfc: Fix possible NULL pointer dereference

FromJames Smart <james.smart@broadcom.com>
Date2016-07-28 17:00 +0200
SubjectRe: [PATCH] lpfc: Fix possible NULL pointer dereference
Message-ID<rZUWZ-7Ed-11@gated-at.bofh.it>
This patch is good. Thanks

-- james

Signed-off-by: James Smart  <james.smart@broadcom.com>


On 6/15/2016 6:00 AM, Johannes Thumshirn wrote:
> Check for the existance of pciob->vport before accessing it.
>
> Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
> ---
>   drivers/scsi/lpfc/lpfc_sli.c | 13 ++++---------
>   1 file changed, 4 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
> index 70edf21..134078f 100644
> --- a/drivers/scsi/lpfc/lpfc_sli.c
> +++ b/drivers/scsi/lpfc/lpfc_sli.c
> @@ -1329,15 +1329,10 @@ lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
>   	if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
>   	   (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
>   	   (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN) &&
> -	 (!(piocb->vport->load_flag & FC_UNLOADING))) {
> -		if (!piocb->vport)
> -			BUG();
> -		else
> -			mod_timer(&piocb->vport->els_tmofunc,
> -				jiffies +
> -				msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
> -	}
> -
> +	    piocb->vport && !(piocb->vport->load_flag & FC_UNLOADING))
> +		mod_timer(&piocb->vport->els_tmofunc,
> +			  jiffies +
> +			  msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
>   
>   	return 0;
>   }

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#1452202

From"Martin K. Petersen" <martin.petersen@oracle.com>
Date2016-07-29 03:30 +0200
Message-ID<s04MF-63R-9@gated-at.bofh.it>
In reply to#1451970
>>>>> "James" == James Smart <james.smart@broadcom.com> writes:

James> This patch is good.

Johannes: You were going to tweak a few things and resubmit. Please do.

-- 
Martin K. Petersen	Oracle Linux Engineering

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#1452302

FromJohannes Thumshirn <jthumshirn@suse.de>
Date2016-07-29 10:10 +0200
Message-ID<s0b1M-20c-31@gated-at.bofh.it>
In reply to#1452202
On Thu, Jul 28, 2016 at 09:21:47PM -0400, Martin K . Petersen wrote:
> >>>>> "James" == James Smart <james.smart@broadcom.com> writes:
> 
> James> This patch is good.
> 
> Johannes: You were going to tweak a few things and resubmit. Please do.

Oh yes, sorry totally forgot about this one.

My bad.

-- 
Johannes Thumshirn                                          Storage
jthumshirn@suse.de                                +49 911 74053 689
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Felix Imendörffer, Jane Smithard, Graham Norton
HRB 21284 (AG Nürnberg)
Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850

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