[Beignet] [PATCH 1/2] Runtime: fix a null reference bug.

[Zhigang Gong]

Please ignore the previous version and use the attached version instead.
As it's conflict with one of Rong's patch.



On Fri, Sep 13, 2013 at 04:55:22PM +0800, Zhigang Gong wrote:
> The image_slice_pitch may be a null pointer. Need to check before refer
> it.
> 
> Signed-off-by: Zhigang Gong <zhigang.gong at linux.intel.com>
> ---
>  src/cl_api.c |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/src/cl_api.c b/src/cl_api.c
> index 7078118..f194760 100644
> --- a/src/cl_api.c
> +++ b/src/cl_api.c
> @@ -2175,7 +2175,8 @@ clEnqueueMapImage(cl_command_queue   command_queue,
>    data->origin[0]   = origin[0];  data->origin[1] = origin[1];  data->origin[2] = origin[2];
>    data->region[0]   = region[0];  data->region[1] = region[1];  data->region[2] = region[2];
>    data->row_pitch   = *image_row_pitch;
> -  data->slice_pitch = *image_slice_pitch;
> +  if (image_slice_pitch)
> +    data->slice_pitch = *image_slice_pitch;
>    data->ptr         = ptr;
>    data->offset      = offset;
>  
> -- 
> 1.7.9.5
> 
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