1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 29d6d84d1c28..41e41f90265d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -83,6 +83,13 @@ int amdgpu_cs_get_ring(struct amdgpu_device *adev, u32 ip_type,
                 }
                 break;
         }
+
+        if (!(*out_ring && (*out_ring)->adev)) {
+                DRM_ERROR("Ring %d is not initialized on IP %d\n",
+                          ring, ip_type);
+                return -EINVAL;
+        }
+
         return 0;
 }