linux-kernel - Re: [PATCH v1 3/4] Crypto: Add support for APM X-Gene SoC CRC32C h/w accelerator driver

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Date:	Thu, 20 Aug 2015 12:40:28 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Rameshwar Sahu <rsahu@....com>
Cc:	dan.j.williams@...el.com, Herbert Xu <herbert@...dor.apana.org.au>,
	davem@...emloft.net, linux-crypto@...r.kernel.org,
	dmaengine@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, jcm@...hat.com,
	patches@....com
Subject: Re: [PATCH v1 3/4] Crypto: Add support for APM X-Gene SoC CRC32C h/w
 accelerator driver

On Thu, Aug 20, 2015 at 12:31:44PM +0530, Rameshwar Sahu wrote:
> Hi Vinod,
> 
> On Thu, Aug 20, 2015 at 11:18 AM, Vinod Koul <vinod.koul@...el.com> wrote:
> > On Thu, Jul 30, 2015 at 05:41:07PM +0530, Rameshwar Prasad Sahu wrote:
> >> +     nents = sg_nents(req->src);
> >> +     sg_count = dma_map_sg(dev, req->src, nents, DMA_TO_DEVICE);
> >> +     if (!sg_count) {
> >> +             dev_err(dev, "Failed to map src sg");
> >> +             return -ENOMEM;
> > mapping error shouldn't be no mem error
> Okay, I guess then -EIO will be fine here??

yes better

-- 
~Vinod
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