[PATCH] drm/vc4: Fix race between page flip completion event and clean-up

[Daniel Stone]

On 28 November 2016 at 22:31, Eric Anholt <eric at anholt.net> wrote:
> There was a small window where a userspace program could submit
> a pageflip after receiving a pageflip completion event yet still
> receive EBUSY.
>
> Signed-off-by: Derek Foreman <derekf at osg.samsung.com>
> Signed-off-by: Eric Anholt <eric at anholt.net>
> Reviewed-by: Eric Anholt <eric at anholt.net>

Reviewed-by: Daniel Stone <daniels at collabora.com>