[PATCH] drm/amdgpu: clear ring pointer in amdgpu_device on teardown

[Grazvydas Ignotas]

This is in symmetry to setup done in amdgpu_ring_init.

Signed-off-by: Grazvydas Ignotas <notasas at gmail.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 777f11b..e1fa873 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -264,6 +264,8 @@ void amdgpu_ring_fini(struct amdgpu_ring *ring)
 			      (void **)&ring->ring);
 
 	amdgpu_debugfs_ring_fini(ring);
+
+	ring->adev->rings[ring->idx] = NULL;
 }
 
 /*
-- 
2.7.4