[PATCH xf86-video-ati] Set correct DRM event context version

[Emil Velikov]

On 10 April 2017 at 09:37, Michel Dänzer <michel at daenzer.net> wrote:
> From: Daniel Stone <daniels at collabora.com>
>
> DRM_EVENT_CONTEXT_VERSION is the latest context version supported by
> whatever version of libdrm is present. We were blindly asserting we
> supported whatever version that may be, even if we actually didn't.
>
> With libdrm 2.4.78, setting a higher context version than 2 will attempt
> to call the page_flip_handler2 vfunc if it was non-NULL, which being a
> random chunk of stack memory, it might well have been.
>
Should be safe since we use xnfcalloc [in RADEONGetRec].

Regardless, the amdgpu and ati patches are
Reviewed-by: Emil Velikov <emil.l.velikov at gmail.com>

Thanks
Emil