[Libva] [PATCH V1][libva-intel-driver] Return if the surface bo is NULL

[Zhao Yakui]

On 12/30/2016 04:08 PM, peng.chen wrote:
> Signed-off-by: peng.chen<peng.c.chen at intel.com>

In fact the dri_bo_unreference function can handle the scenario that bo 
is NULL.

Of course it also looks good to me that the explicit check is added in 
the i965_destroy_surface_storage.

Add: Reviewed-by: Zhao Yakui <yakui.zhao at intel.com>

Thanks
> ---
>   src/i965_drv_video.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/src/i965_drv_video.c b/src/i965_drv_video.c
> index bf59374..ded3d93 100644
> --- a/src/i965_drv_video.c
> +++ b/src/i965_drv_video.c
> @@ -1210,7 +1210,7 @@ VAStatus i965_QueryConfigAttributes(VADriverContextP ctx,
>   void
>   i965_destroy_surface_storage(struct object_surface *obj_surface)
>   {
> -    if (!obj_surface)
> +    if (!obj_surface || !obj_surface->bo)
>           return;
>
>       dri_bo_unreference(obj_surface->bo);