Re: [PATCH] dma: mmp_pdma: fix a memory alloc error

[Xiang Wang]

2013/5/28 Andy Shevchenko <andy.shevchenko@xxxxxxxxx>:
> On Tue, May 28, 2013 at 3:05 PM, Xiang Wang <wangxfdu@xxxxxxxxx> wrote:
>> From: Xiang Wang <wangx@xxxxxxxxxxx>
>>
>> pdev->phy is of type "struct mmp_pdma_phy *". But when
>> allocating memory for it, "struct mmp_pdma_chan" is used
>> by mistake.
>
> Have you tested it?
>
>> Signed-off-by: Xiang Wang <wangx@xxxxxxxxxxx>
>> ---
>>  drivers/dma/mmp_pdma.c |    2 +-
>>  1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
>> index c26699f..76a8dcf 100644
>> --- a/drivers/dma/mmp_pdma.c
>> +++ b/drivers/dma/mmp_pdma.c
>> @@ -801,7 +801,7 @@ static int mmp_pdma_probe(struct platform_device *op)
>>         }
>>
>>         pdev->phy = devm_kzalloc(pdev->dev,
>> -               dma_channels * sizeof(struct mmp_pdma_chan), GFP_KERNEL);
>> +               dma_channels * sizeof(struct mmp_pdma_phy), GFP_KERNEL);
>
> For me it seems you did get how it works.
>
> --
> With Best Regards,
> Andy Shevchenko

Hi, Andy
Yes. I've tested on marvell pxa988 platform using dmatest.ko.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/