drm/ttm: Make sure a sync object doesn't disappear while we use it
authorThomas Hellstrom <thellstrom@vmware.com>
Tue, 2 Nov 2010 13:21:47 +0000 (13:21 +0000)
committerDave Airlie <airlied@redhat.com>
Tue, 9 Nov 2010 03:38:32 +0000 (13:38 +1000)
commitaa123268c2623c62e33248dafc0572f091689e86
tree8a61fcdcc61849b5b931466bc4560b543bc75527
parenta0ae5864d42b41c411368bd689462bf063c029c8
drm/ttm: Make sure a sync object doesn't disappear while we use it

The sync object may disappear as soon as we release the bo::lock, so
take a reference on it while we use it.
One option would be to call sync_object_flush() before releasing the bo::lock,
but that would put an atomic requirement on that function.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/ttm/ttm_bo.c