tree c6ef345799ac6ed7038686f3ba064042401f1566
parent bc0c7f14432f7f94b16f972f2d23b8c1248249b4
author Daniel Vetter <daniel.vetter@ffwll.ch> 1282321606 +0200
committer Chris Wilson <chris@chris-wilson.co.uk> 1283937204 +0100

drm/i915: unload: fix hotplug_work races

hotplug_work is queued by the hotplug interrupt and only either emits
a hotplug uevent or queues a crt poll slow-work. No other locking.  So
it's safe to cancel this work _after_ irq's have been turned off.  But
before the modesetting objects are destroyed because the hotplug
function accesses them (without locking).

The current code (for kms) only switches irqs off after modesetting
teardown, hence move the irq teardown into the modeset cleanup right
before the crtc cleanup.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>