tree 1a09af919fb8ab10db0d84a0b1440883ee89f913
parent 441388a8a73f905359e60518cfc18eca6aed2b6a
author Imre Deak <imre.deak@intel.com> 1454071469 +0200
committer Dave Airlie <airlied@redhat.com> 1454649828 +1000

drm/mst: Add range check for max_payloads during init

max_payload is limited by the space we have in
drm_dp_mst_topology_mgr::vcpi_mask,payload_mask. We need to track
max_payloads+1 IDs in these masks, see drm_dp_mst_assign_payload_id().
Add a sanity check for this.

Caught by coverity.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>