drm/nouveau: fix race when adding delayed work items

kernel.org bz#198221.

Reported-by: Petr Vandrovec <petr@vandrovec.name>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2017-12-23 08:54:28 +10:00
commit b26a2319be