drm/nouveau: fix assumption that semaphore dmaobj is valid in x-chan sync
authorBen Skeggs <bskeggs@redhat.com>
Fri, 17 Jun 2011 13:41:54 +0000 (23:41 +1000)
committerBen Skeggs <bskeggs@redhat.com>
Sat, 18 Jun 2011 04:56:24 +0000 (14:56 +1000)
The DDX modifies DMA_SEMAPHORE on nv50 in order to implement sync-to-vblank,
things will go very wrong for cross-channel sync after this.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

No differences found