drm/amd/display: Check link_res->hpo_dp_link_enc before using it

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[WHAT & HOW]
Functions dp_enable_link_phy and dp_disable_link_phy can pass link_res
without initializing hpo_dp_link_enc and it is necessary to check for
null before dereferencing.

This fixes 2 FORWARD_NULL issues reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Alex Hung 2024-06-27 16:45:39 -06:00 • committed by Alex Deucher

parent 9932ca4c03

commit 0beca868cd

1 changed files with 7 additions and 0 deletions

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drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_hpo_dp.c

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