drm/nouveau: fix oops on pre-semaphore hardware

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

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
index 8d02d875376d..c919cfc8f2fd 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -530,7 +530,8 @@ nouveau_fence_channel_init(struct nouveau_channel *chan)
                 nouveau_gpuobj_ref(NULL, &obj);
                 if (ret)
                         return ret;
-        } else {
+        } else
+        if (USE_SEMA(dev)) {
                 /* map fence bo into channel's vm */
                 ret = nouveau_bo_vma_add(dev_priv->fence.bo, chan->vm,
                                          &chan->fence.vma);