[PATCH] drm: allocate crtc mutex separately from crtc

[Ilija Hadzic]

> Can't we instead just copy the few things we need to restore back?
> This wholesale structure copying has rather tricky semantics and is
> bound to trick up someone else in the future. And indeed we seem to
> have a similar (but less catastrophic) thing going on with crtc->fb I
> think.

Sure, it would be possible. If that's a preferred solution, I'll cut
the alternative patch.

I.