Re: [PATCH] pch_dma: Fix suspend issue

[Vinod Koul]

On Tue, 2011-10-04 at 16:27 +0900, Tomoya MORINAGA wrote:
> Currently, executing suspend/hibernation,
> memory access violation occurs.
> 
> This patch fixes the issue
>  - Modify array size (MAX_CHAN_NR)
> 
> Signed-off-by: Tomoya MORINAGA <tomoya-linux@xxxxxxxxxxxxxxxxxx>
> ---
>  drivers/dma/pch_dma.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/dma/pch_dma.c b/drivers/dma/pch_dma.c
> index 1ac8d4b..42bcc80 100644
> --- a/drivers/dma/pch_dma.c
> +++ b/drivers/dma/pch_dma.c
> @@ -60,7 +60,7 @@
>  #define DMA_DESC_FOLLOW_WITHOUT_IRQ	0x2
>  #define DMA_DESC_FOLLOW_WITH_IRQ	0x3
>  
> -#define MAX_CHAN_NR			8
> +#define MAX_CHAN_NR			12
>  
>  #define DMA_MASK_CTL0_MODE	0x33333333
>  #define DMA_MASK_CTL2_MODE	0x00003333

How would changing the max number of descriptors fix the memory
violation?

-- 
~Vinod

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