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| author | Evan Quan | 2019-07-25 06:10:34 +0200 |
|---|---|---|
| committer | Alex Deucher | 2019-07-31 07:06:58 +0200 |
| commit | 479156f2e5540077377a823eaf5a4263bd329063 (patch) | |
| tree | 9034d6039d2f32fd9997bbc8e9527853b2cbb929 /drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | |
| parent | drm/amdgpu/powerplay: use proper revision id for navi (diff) | |
| download | kernel-qcow2-linux-479156f2e5540077377a823eaf5a4263bd329063.tar.gz kernel-qcow2-linux-479156f2e5540077377a823eaf5a4263bd329063.tar.xz kernel-qcow2-linux-479156f2e5540077377a823eaf5a4263bd329063.zip | |
drm/amd/powerplay: fix null pointer dereference around dpm state relates
DPM state relates are not supported on the new SW SMU ASICs. But still
it's not OK to trigger null pointer dereference on accessing them.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/amdgpu_smu.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c index c097113c3976..88ed85e3d233 100644 --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c @@ -306,7 +306,8 @@ int smu_get_power_num_states(struct smu_context *smu, /* not support power state */ memset(state_info, 0, sizeof(struct pp_states_info)); - state_info->nums = 0; + state_info->nums = 1; + state_info->states[0] = POWER_STATE_TYPE_DEFAULT; return 0; } |