1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 855e2196657a..7d442c51063e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -342,6 +342,8 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
                 amdgpu_fence_driver_init_ring(ring);
         }
 
+        init_waitqueue_head(&ring->fence_drv.fence_queue);
+
         r = amdgpu_wb_get(adev, &ring->rptr_offs);
         if (r) {
                 dev_err(adev->dev, "(%d) ring rptr_offs wb alloc failed\n", r);
@@ -367,7 +369,7 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
         }
         ring->next_rptr_gpu_addr = adev->wb.gpu_addr + (ring->next_rptr_offs * 4);
         ring->next_rptr_cpu_addr = &adev->wb.wb[ring->next_rptr_offs];
-
+        spin_lock_init(&ring->fence_lock);
         r = amdgpu_fence_driver_start_ring(ring, irq_src, irq_type);
         if (r) {
                 dev_err(adev->dev, "failed initializing fences (%d).\n", r);