linux-kernel - Re: [PATCH] staging: android: ion: Initialize dma

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Message-ID: <alpine.DEB.2.02.1802121319370.2345@lmark-linux.qualcomm.com>
Date:   Mon, 12 Feb 2018 13:25:53 -0800 (PST)
From:   Liam Mark <lmark@...eaurora.org>
To:     Dan Carpenter <dan.carpenter@...cle.com>
cc:     Laura Abbott <labbott@...hat.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        devel@...verdev.osuosl.org, linaro-mm-sig@...ts.linaro.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: android: ion: Initialize dma_address of new sg
 list


On Mon, 12 Feb 2018, Dan Carpenter wrote:

> On Fri, Feb 09, 2018 at 10:16:56PM -0800, Liam Mark wrote:
> > Fix the dup_sg_table function to initialize the dma_address of the new
> > sg list entries instead of the source dma_address entries.
> > 
> > Fixes: 17fd283f3870 ("staging: android: ion: Duplicate sg_table")
> > Signed-off-by: Liam Mark <lmark@...eaurora.org>
> 
> How did you find this bug?  What are the user visible effects of this
> bug?  I'm probably going to ask you to send a v2 patch with a new
> changelog depending on the answers to these questions.

I noticed the bug when reading through the code, I haven’t seen any 
visible effects of this bug.

>From looking at the code I don’t see any obvious ways that this bug would 
introduce any issues with the current code base.

Liam

Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project