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drm/amd/powerplay: fix null pointer dereference around dpm state relates
authorEvan Quan <evan.quan@amd.com>
Thu, 25 Jul 2019 04:10:34 +0000 (12:10 +0800)
committerSasha Levin <sashal@kernel.org>
Sun, 25 Aug 2019 14:10:30 +0000 (10:10 -0400)
commit08283dd59130956ec8ffd92b88e08db6476c97f2
tree832a1493260161dde2dccf54a32d96b2a004f3batree
parentcee79a3268a838fbb816834050a3c2d6e817eb6ecommit | diff
drm/amd/powerplay: fix null pointer dereference around dpm state relates

[ Upstream commit 479156f2e5540077377a823eaf5a4263bd329063 ]

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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c diff | blob | history
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c diff | blob | history
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