Be more defensive and raise error on wrong mem_type argument in amdgpu_gtt_mgr_has_gart_addr().
Signed-off-by: Nirmoy Das nirmoy.das@amd.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c index 543000304a1c..0b0fa87b115c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c @@ -107,8 +107,12 @@ const struct attribute_group amdgpu_gtt_mgr_attr_group = { */ bool amdgpu_gtt_mgr_has_gart_addr(struct ttm_resource *res) { - struct amdgpu_gtt_node *node = to_amdgpu_gtt_node(res); + struct amdgpu_gtt_node *node; + + if (WARN_ON(res->mem_type != TTM_PL_TT)) + return false;
+ node = to_amdgpu_gtt_node(res); return drm_mm_node_allocated(&node->base.mm_nodes[0]); }