because some asics have no smu.ppt_funcs
we need add one check for it otherwise
it will raise null pointer problem.
Signed-off-by: Yintian Tao <yttao@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index a21ee035ca57..b8a42ebb2f5a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -160,7 +160,8 @@ static ssize_t amdgpu_get_dpm_state(struct device *dev,
enum amd_pm_state_type pm;
if (is_support_sw_smu(adev)) {
- if (adev->smu.ppt_funcs->get_current_power_state)
+ if (adev->smu.ppt_funcs &&
+ adev->smu.ppt_funcs->get_current_power_state)
pm = smu_get_current_power_state(&adev->smu);
else
pm = adev->pm.dpm.user_state;
--
2.17.1
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