Ben Skeggs 697bb728d9 drm/nouveau/kms/nv50-: guard against enabling cursor on disabled heads
Userspace has started doing this, which upsets the display class hw
error checking in various unpleasant ways.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-07-28 17:22:13 +10:00
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