drm/amd/display: Fix KUnit MST warnings

[WHY]
The MST add-connector fixture registers an unmanaged master connector
but does not clean it up before its KUnit-owned storage is released.

[HOW]
Register a KUnit action after successful connector initialization to
run drm_connector_cleanup before freeing the master connector.

Assisted-by: Copilot:GPT-6-Astra
Reviewed-by: Bhawanpreet Lakha <bhawanpreet.lakha@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Hung 2026-09-10 10:28:11 -06:00 • committed by Alex Deucher
commit 846b74b1bd