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

[Michel Dänzer]

On 10/04/17 06:42 PM, Emil Velikov wrote:
> 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].

That's a good point, thanks (applies equally to the modesetting driver
AFAICT); I'll drop the second paragraph from the commit log.


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

Thanks!


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer