mei: mei_cl_link protect open_handle_count from overflow
mei: mei_cl_link protect open_handle_count from overflow

mei_cl_link is called both from mei_open and also from
in-kernel drivers so we need to protect open_handle_count
from overflow

Signed-off-by: Tomas Winkler <002a8af089113a6510dbc00453be711ac350fd80@intel.com>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs