drm/i915: Keep malloc references to MST ports
authorLyude Paul <lyude@redhat.com>
Fri, 11 Jan 2019 00:53:33 +0000 (19:53 -0500)
committerLyude Paul <lyude@redhat.com>
Fri, 11 Jan 2019 01:12:23 +0000 (20:12 -0500)
commit79a47cd36c8ddbf4435cd658d00c61cc2d9741cd
tree0567a4747e4e4a458f86bde93d75497d2074ebd4
parentcfe9f90358d97a83253443b0182bff1222d3a7ac
drm/i915: Keep malloc references to MST ports

So that the ports stay around until we've destroyed the connectors, in
order to ensure that we don't pass an invalid pointer to any MST helpers
once we introduce the new MST VCPI helpers.

Changes since v1:
* Move drm_dp_mst_get_port_malloc() to where we assign
  intel_connector->port - danvet

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@redhat.com>
Cc: Jerry Zuo <Jerry.Zuo@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Juston Li <juston.li@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190111005343.17443-11-lyude@redhat.com
drivers/gpu/drm/i915/intel_connector.c
drivers/gpu/drm/i915/intel_dp_mst.c