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(parent: 81eda46) | patch
drm/amd/powerplay: check whether SMU IP is enabled before access
authorEvan Quan <evan.quan@amd.com>
Mon, 25 May 2020 06:29:10 +0000 (14:29 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 28 May 2020 18:00:50 +0000 (14:00 -0400)
commit85f9bf453193aa3a867a8a2335885b94cfbc75e1
treefa35379376a7bd7c8c1d0883640862beecb1ae45tree | snapshot
parent81eda4663fc396be832750ef1e5fb6b245c46d98commit | diff
drm/amd/powerplay: check whether SMU IP is enabled before access

Since on early phase of bringup, the SMU IP may be not enabled or
supported. Without this, we may hit null pointer dereference on
accessing smu->adev.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Yong Zhao <Yong.Zhao@amd.com>
Tested-by: Yong Zhao <Yong.Zhao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c diff | blob | history
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