linux-kernel - Re: [PATCH 15/20] [SCSI] mpt3sas: Return host busy error status to SML when DMA mapping of scatter gather list fails for a SCSI command

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Message-ID: <yq1oakba0ug.fsf@sermon.lab.mkp.net>
Date:	Fri, 19 Jun 2015 16:40:23 -0400
From:	"Martin K. Petersen" <martin.petersen@...cle.com>
To:	Sreekanth Reddy <sreekanth.reddy@...gotech.com>
Cc:	jejb@...nel.org, hch@...radead.org, martin.petersen@...cle.com,
	linux-scsi@...r.kernel.org, JBottomley@...allels.com,
	Sathya.Prakash@...gotech.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 15/20] [SCSI] mpt3sas: Return host busy error status to SML when DMA mapping of scatter gather list fails for a SCSI command

>>>>> Sreekanth Reddy <sreekanth.reddy@...gotech.com> writes:

> scsi_dma_map API will return a negative value (i.e. -ENOMEM) if DMA
> mapping of sg lists fails and zero if the sg list in the SCSI cmd is
> NULL. But drivers doesn't handled sg list DMA mapping failure case
> properly.

Reviewed-by: Martin K. Petersen <martin.petersen@...cle.com>

-- 
Martin K. Petersen	Oracle Linux Engineering
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