874 	struct usb_cdev_refdata refs;  in usb_open()  local
890 	err = usb_ref_device(cpd, &refs, 1);  in usb_open()
899 	err = usb_fifo_create(cpd, &refs);  in usb_open()
903 		usb_unref_device(cpd, &refs);  in usb_open()
908 		err = usb_fifo_open(cpd, refs.rxfifo, fflags);  in usb_open()
911 			usb_unref_device(cpd, &refs);  in usb_open()
917 		err = usb_fifo_open(cpd, refs.txfifo, fflags);  in usb_open()
921 				usb_fifo_close(refs.rxfifo, fflags);  in usb_open()
923 			usb_unref_device(cpd, &refs);  in usb_open()
928 	usb_unref_device(cpd, &refs);  in usb_open()
940 	struct usb_cdev_refdata refs;  in usb_close()  local
946 	err = usb_ref_device(cpd, &refs,  in usb_close()
954 		usb_fifo_close(refs.rxfifo, cpd->fflags);  in usb_close()
957 		usb_fifo_close(refs.txfifo, cpd->fflags);  in usb_close()
959 	usb_unref_device(cpd, &refs);  in usb_close()
1057 	struct usb_cdev_refdata refs;  in usb_ioctl()  local
1074 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_ioctl()
1084 		f = refs.txfifo;  in usb_ioctl()
1088 		f = refs.rxfifo;  in usb_ioctl()
1102 	if (usb_usb_ref_device(cpd, &refs)) {  in usb_ioctl()
1120 		usb_unref_device(cpd, &refs);  in usb_ioctl()
1124 		while (usb_ref_device(cpd, &refs, 1 /* need uref */)) {  in usb_ioctl()
1125 			if (usb_ref_device(cpd, &refs, 0)) {  in usb_ioctl()
1129 			usb_unref_device(cpd, &refs);  in usb_ioctl()
1135 	usb_unref_device(cpd, &refs);  in usb_ioctl()
1248 	struct usb_cdev_refdata refs;  in usb_kqfilter()  local
1257 	    usb_ref_device(cpd, &refs, 0) != 0)  in usb_kqfilter()
1266 			f = refs.txfifo;  in usb_kqfilter()
1273 			f = refs.rxfifo;  in usb_kqfilter()
1290 	usb_unref_device(cpd, &refs);  in usb_kqfilter()
1298 	struct usb_cdev_refdata refs;  in usb_poll()  local
1305 	    usb_ref_device(cpd, &refs, 0) != 0)  in usb_poll()
1315 		f = refs.txfifo;  in usb_poll()
1319 		if (!refs.is_usbfs) {  in usb_poll()
1353 		f = refs.rxfifo;  in usb_poll()
1357 		if (!refs.is_usbfs) {  in usb_poll()
1386 			if (!refs.is_usbfs) {  in usb_poll()
1394 	usb_unref_device(cpd, &refs);  in usb_poll()
1401 	struct usb_cdev_refdata refs;  in usb_read()  local
1413 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_read()
1417 	f = refs.rxfifo;  in usb_read()
1420 		usb_unref_device(cpd, &refs);  in usb_read()
1432 	if (refs.is_usbfs) {  in usb_read()
1507 	usb_unref_device(cpd, &refs);  in usb_read()
1515 	struct usb_cdev_refdata refs;  in usb_write()  local
1530 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_write()
1534 	f = refs.txfifo;  in usb_write()
1537 		usb_unref_device(cpd, &refs);  in usb_write()
1549 	if (refs.is_usbfs) {  in usb_write()
1642 	usb_unref_device(cpd, &refs);  in usb_write()