drm/amdgpu: check SMU NULL ptr on gfx hw init

Check SMU NULL ptr before load smu fw.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Likun Gao 2019-08-15 15:46:10 +08:00 • committed by Alex Deucher
commit 98bf250edd