[PATCH 1/2] drm/ttm: add a way to bo_wait for either the last read or last write

[Marek Olšák]

On Fri, Aug 12, 2011 at 7:21 PM, Jerome Glisse <j.glisse at gmail.com> wrote:
>> diff --git a/drivers/gpu/drm/ttm/ttm_execbuf_util.c b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
>> index 3832fe1..0438296 100644
>> --- a/drivers/gpu/drm/ttm/ttm_execbuf_util.c
>> +++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
>> @@ -223,6 +223,14 @@ void ttm_eu_fence_buffer_objects(struct list_head *list, void *sync_obj)
>>                bo = entry->bo;
>>                entry->old_sync_obj = bo->sync_obj;
>
> Here we should set entry->old_sync_obj_read &
> entry->old_sync_obj_write to NULL so
> we don't get bite by uninitialized memory (if caller fail or forget to do so)

OK, thanks. It's fixed in the attached patch. There are no other changes.

Marek
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