197 	/* clear all refs */  in usb_ref_device()
229 		 * grabbing the FIFO refs to avoid deadlock at detach!  in usb_ref_device()
308 	/* clear all refs */  in usb_ref_device()
873 	struct usb_cdev_refdata refs;  in usb_open()  local
889 	err = usb_ref_device(cpd, &refs, 1);  in usb_open()
898 	err = usb_fifo_create(cpd, &refs);  in usb_open()
902 		usb_unref_device(cpd, &refs);  in usb_open()
907 		err = usb_fifo_open(cpd, refs.rxfifo, fflags);  in usb_open()
910 			usb_unref_device(cpd, &refs);  in usb_open()
916 		err = usb_fifo_open(cpd, refs.txfifo, fflags);  in usb_open()
920 				usb_fifo_close(refs.rxfifo, fflags);  in usb_open()
922 			usb_unref_device(cpd, &refs);  in usb_open()
927 	usb_unref_device(cpd, &refs);  in usb_open()
939 	struct usb_cdev_refdata refs;  in usb_close()  local
945 	err = usb_ref_device(cpd, &refs,  in usb_close()
953 		usb_fifo_close(refs.rxfifo, cpd->fflags);  in usb_close()
956 		usb_fifo_close(refs.txfifo, cpd->fflags);  in usb_close()
958 	usb_unref_device(cpd, &refs);  in usb_close()
1056 	struct usb_cdev_refdata refs;  in usb_ioctl()  local
1073 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_ioctl()
1083 		f = refs.txfifo;  in usb_ioctl()
1087 		f = refs.rxfifo;  in usb_ioctl()
1101 	if (usb_usb_ref_device(cpd, &refs)) {  in usb_ioctl()
1119 		usb_unref_device(cpd, &refs);  in usb_ioctl()
1123 		while (usb_ref_device(cpd, &refs, 1 /* need uref */)) {  in usb_ioctl()
1124 			if (usb_ref_device(cpd, &refs, 0)) {  in usb_ioctl()
1128 			usb_unref_device(cpd, &refs);  in usb_ioctl()
1134 	usb_unref_device(cpd, &refs);  in usb_ioctl()
1247 	struct usb_cdev_refdata refs;  in usb_kqfilter()  local
1256 	    usb_ref_device(cpd, &refs, 0) != 0)  in usb_kqfilter()
1265 			f = refs.txfifo;  in usb_kqfilter()
1272 			f = refs.rxfifo;  in usb_kqfilter()
1289 	usb_unref_device(cpd, &refs);  in usb_kqfilter()
1297 	struct usb_cdev_refdata refs;  in usb_poll()  local
1304 	    usb_ref_device(cpd, &refs, 0) != 0)  in usb_poll()
1314 		f = refs.txfifo;  in usb_poll()
1318 		if (!refs.is_usbfs) {  in usb_poll()
1352 		f = refs.rxfifo;  in usb_poll()
1356 		if (!refs.is_usbfs) {  in usb_poll()
1385 			if (!refs.is_usbfs) {  in usb_poll()
1393 	usb_unref_device(cpd, &refs);  in usb_poll()
1400 	struct usb_cdev_refdata refs;  in usb_read()  local
1412 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_read()
1416 	f = refs.rxfifo;  in usb_read()
1419 		usb_unref_device(cpd, &refs);  in usb_read()
1431 	if (refs.is_usbfs) {  in usb_read()
1506 	usb_unref_device(cpd, &refs);  in usb_read()
1514 	struct usb_cdev_refdata refs;  in usb_write()  local
1529 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_write()
1533 	f = refs.txfifo;  in usb_write()
1536 		usb_unref_device(cpd, &refs);  in usb_write()
1548 	if (refs.is_usbfs) {  in usb_write()
1641 	usb_unref_device(cpd, &refs);  in usb_write()