[PATCH xserver] modesetting: Fix inverted check in dri2 WaitMSC

[Adam Jackson]

On Mon, 2018-04-16 at 22:58 +0000, Mike Lothian wrote:
> I've applied this too as part of my testing, I don't see a dri3 file
> - does that mean the dri2 one covers both dri2&3?

It covers just DRI2. In the DRI3 model the equivalent operation lives
in Present (.../present.c), and the code there does not have this bug.

> If it doesn't please ignore
> 
> Tested-by: Mike Lothian <mike at fireburn.co.uk>

Merged, thanks:

remote: I: patch #217290 updated using rev 78b6f940217c127f0f345b7710aa5994c6ded99c.
remote: I: 1 patch(es) updated to state Accepted.
To ssh://git.freedesktop.org/git/xorg/xserver
   4e92c51ce4..78b6f94021  master -> master

- ajax