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Message-ID: <4E8E940E.7040701@dsn.lapis-semi.com>
Date: Fri, 07 Oct 2011 14:54:22 +0900
From: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
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To: Vinod Koul <vinod.koul@intel.com>
CC: Dan Williams <dan.j.williams@intel.com>, linux-kernel@vger.kernel.org,
        qi.wang@intel.com, yong.y.wang@intel.com, joel.clark@intel.com,
        kok.howg.ewe@intel.com
Subject: Re: [PATCH] pch_dma: Fix suspend issue
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(2011/10/07 14:00), Vinod Koul wrote:
> How would changing the max number of descriptors fix the memory
> violation?
>

In probe of pch_dma,  you can see the following code.

	for (i = 0; i < nr_channels; i++) {

snip...

		pd_chan->membase = &regs->desc[i];

snip...

	}

Max value of nr_channels is 12 defined at pci_table.
So, this caused memory access violation.

-- 
tomoya
ROHM Co., Ltd.