879 	struct usb_cdev_refdata refs;  in usb_open()  local
895 	err = usb_ref_device(cpd, &refs, 1);  in usb_open()
904 	err = usb_fifo_create(cpd, &refs);  in usb_open()
908 		usb_unref_device(cpd, &refs);  in usb_open()
913 		err = usb_fifo_open(cpd, refs.rxfifo, fflags);  in usb_open()
916 			usb_unref_device(cpd, &refs);  in usb_open()
922 		err = usb_fifo_open(cpd, refs.txfifo, fflags);  in usb_open()
926 				usb_fifo_close(refs.rxfifo, fflags);  in usb_open()
928 			usb_unref_device(cpd, &refs);  in usb_open()
933 	usb_unref_device(cpd, &refs);  in usb_open()
945 	struct usb_cdev_refdata refs;  in usb_close()  local
951 	err = usb_ref_device(cpd, &refs,  in usb_close()
959 		usb_fifo_close(refs.rxfifo, cpd->fflags);  in usb_close()
962 		usb_fifo_close(refs.txfifo, cpd->fflags);  in usb_close()
964 	usb_unref_device(cpd, &refs);  in usb_close()
1062 	struct usb_cdev_refdata refs;  in usb_ioctl()  local
1079 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_ioctl()
1089 		f = refs.txfifo;  in usb_ioctl()
1093 		f = refs.rxfifo;  in usb_ioctl()
1107 	if (usb_usb_ref_device(cpd, &refs)) {  in usb_ioctl()
1126 		usb_unref_device(cpd, &refs);  in usb_ioctl()
1130 		while (usb_ref_device(cpd, &refs, 1 /* need uref */)) {  in usb_ioctl()
1131 			if (usb_ref_device(cpd, &refs, 0)) {  in usb_ioctl()
1135 			usb_unref_device(cpd, &refs);  in usb_ioctl()
1141 	usb_unref_device(cpd, &refs);  in usb_ioctl()
1255 	struct usb_cdev_refdata refs;  in usb_kqfilter()  local
1264 	    usb_ref_device(cpd, &refs, 0) != 0)  in usb_kqfilter()
1273 			f = refs.txfifo;  in usb_kqfilter()
1280 			f = refs.rxfifo;  in usb_kqfilter()
1297 	usb_unref_device(cpd, &refs);  in usb_kqfilter()
1305 	struct usb_cdev_refdata refs;  in usb_poll()  local
1312 	    usb_ref_device(cpd, &refs, 0) != 0)  in usb_poll()
1323 		f = refs.txfifo;  in usb_poll()
1327 		if (!refs.is_usbfs) {  in usb_poll()
1362 		f = refs.rxfifo;  in usb_poll()
1366 		if (!refs.is_usbfs) {  in usb_poll()
1395 			if (!refs.is_usbfs) {  in usb_poll()
1403 	usb_unref_device(cpd, &refs);  in usb_poll()
1410 	struct usb_cdev_refdata refs;  in usb_read()  local
1422 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_read()
1426 	f = refs.rxfifo;  in usb_read()
1429 		usb_unref_device(cpd, &refs);  in usb_read()
1441 	if (refs.is_usbfs) {  in usb_read()
1519 	usb_unref_device(cpd, &refs);  in usb_read()
1527 	struct usb_cdev_refdata refs;  in usb_write()  local
1542 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_write()
1546 	f = refs.txfifo;  in usb_write()
1549 		usb_unref_device(cpd, &refs);  in usb_write()
1561 	if (refs.is_usbfs) {  in usb_write()
1655 	usb_unref_device(cpd, &refs);  in usb_write()