drm/amd/display: fix access hdcp_workqueue assert

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[Why] hdcp are enabled for asics from raven. for old asics
which hdcp are not enabled, hdcp_workqueue are null. some
access to hdcp work queue are not guarded with pointer check.

[How] add hdcp_workqueue pointer check before access workqueue.

Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Hersen Wu 2023-03-28 10:45:24 -04:00 • committed by Alex Deucher

parent 522b9a5d58

commit cdff36a021

2 changed files with 16 additions and 6 deletions

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6

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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16

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

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