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| author | Rex Zhu <Rex.Zhu@amd.com> | 2018-10-19 10:46:53 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-10-24 20:04:03 -0500 |
| commit | 7179d24040d66de22e4710e943256be9e1045feb (patch) | |
| tree | 057355430d6663577ad36f1b8bca8a037c45a099 /drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | |
| parent | 6f059c641b31076248ba89d0f7e0e753946a8099 (diff) | |
| download | lwn-7179d24040d66de22e4710e943256be9e1045feb.tar.gz lwn-7179d24040d66de22e4710e943256be9e1045feb.zip | |
drm/amdgpu: Fix null point error
need to check adev->powerplay.pp_funcs first, becasue from
AI, the smu ip can be disabled by user, and the pp_handle
is null in this case.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c index 14649f8475f3..fd23ba1226a5 100644 --- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c +++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c @@ -280,7 +280,7 @@ void mmhub_v1_0_update_power_gating(struct amdgpu_device *adev, return; if (enable && adev->pg_flags & AMD_PG_SUPPORT_MMHUB) { - if (adev->powerplay.pp_funcs->set_powergating_by_smu) + if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->set_powergating_by_smu) amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GMC, true); } |