Commit fd2d2bac authored by Andrey Grodzovsky's avatar Andrey Grodzovsky Committed by Dave Airlie

drm/dp/mst: Always clear proposed vcpi table for port.

Not clearing mst manager's proposed vcpis table for destroyed connectors when the manager is stopped leaves it pointing to unrefernced memory, this causes pagefault when the manager is restarted when plugging back a branch.

Fixes: 91a25e46 ("drm/dp/mst: deallocate payload on port destruction")
Signed-off-by: default avatarAndrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Reviewed-by: default avatarLyude <cpaul@redhat.com>
Cc: stable@vger.kernel.org
Cc: Mykola Lysenko <Mykola.Lysenko@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
parent 93f55972
......@@ -2927,12 +2927,10 @@ static void drm_dp_destroy_connector_work(struct work_struct *work)
drm_dp_port_teardown_pdt(port, port->pdt);
if (!port->input && port->vcpi.vcpi > 0) {
if (mgr->mst_state) {
drm_dp_mst_reset_vcpi_slots(mgr, port);
drm_dp_update_payload_part1(mgr);
drm_dp_mst_put_payload_id(mgr, port->vcpi.vcpi);
}
}
kref_put(&port->kref, drm_dp_free_mst_port);
send_hotplug = true;
......
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