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drm/i915: check for kms in dri1 ioctls
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 24 Apr 2012 06:29:42 +0000 (08:29 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 3 May 2012 09:18:14 +0000 (11:18 +0200)
Calling these when gem assumes full control of the hw won't end
in anything else than tears. So be a bit more paranoid here.

Just serves as documentation.

v2: Bail out with ENODEV as suggested by Chris Wilson.

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

No differences found
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