iop_sdh            99 dev/i2o/iop.c  void	*iop_sdh;
iop_sdh           390 dev/i2o/iop.c  	if (iop_sdh == NULL)
iop_sdh           391 dev/i2o/iop.c  		iop_sdh = shutdownhook_establish(iop_shutdown, NULL);