drm/amd/display: Fix wb_info leak and NULL deref in writeback

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[WHAT]
dc_stream_add_writeback() copies wb_info by value, so free it on all
paths via a single cleanup label. Also bail out early when no pipe_ctx
matches the stream to avoid a NULL pointer dereference.

Assisted-by: Copilot:Claude-Opus-4.8
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Alex Hung 2026-07-20 18:32:59 -06:00 • committed by Alex Deucher

parent df94112cee

commit 8b87300e1b

1 changed files with 11 additions and 5 deletions

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

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