789 	struct usb_cdev_refdata refs;  in usb_open()  local
810 	err = usb_ref_device(cpd, &refs, 1);  in usb_open()
819 	err = usb_fifo_create(cpd, &refs);  in usb_open()
823 		usb_unref_device(cpd, &refs);  in usb_open()
828 		err = usb_fifo_open(cpd, refs.rxfifo, fflags);  in usb_open()
831 			usb_unref_device(cpd, &refs);  in usb_open()
837 		err = usb_fifo_open(cpd, refs.txfifo, fflags);  in usb_open()
841 				usb_fifo_close(refs.rxfifo, fflags);  in usb_open()
843 			usb_unref_device(cpd, &refs);  in usb_open()
849 	usb_unref_device(cpd, &refs);  in usb_open()
861 	struct usb_cdev_refdata refs;  in usb_close()  local
867 	err = usb_ref_device(cpd, &refs,  in usb_close()
875 		usb_fifo_close(refs.rxfifo, cpd->fflags);  in usb_close()
878 		usb_fifo_close(refs.txfifo, cpd->fflags);  in usb_close()
880 	usb_unref_device(cpd, &refs);  in usb_close()
966 	struct usb_cdev_refdata refs;  in usb_ioctl()  local
980 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_ioctl()
990 		f = refs.txfifo;  in usb_ioctl()
994 		f = refs.rxfifo;  in usb_ioctl()
1008 	if (usb_usb_ref_device(cpd, &refs)) {  in usb_ioctl()
1027 		usb_unref_device(cpd, &refs);  in usb_ioctl()
1031 		while (usb_ref_device(cpd, &refs, 1 /* need uref */)) {  in usb_ioctl()
1032 			if (usb_ref_device(cpd, &refs, 0)) {  in usb_ioctl()
1036 			usb_unref_device(cpd, &refs);  in usb_ioctl()
1042 	usb_unref_device(cpd, &refs);  in usb_ioctl()
1050 	struct usb_cdev_refdata refs;  in usb_poll()  local
1057 	if (usb_ref_device(cpd, &refs, 0) != 0)  in usb_poll()
1068 		f = refs.txfifo;  in usb_poll()
1072 		if (!refs.is_usbfs) {  in usb_poll()
1106 		f = refs.rxfifo;  in usb_poll()
1110 		if (!refs.is_usbfs) {  in usb_poll()
1140 			if (!refs.is_usbfs) {  in usb_poll()
1148 	usb_unref_device(cpd, &refs);  in usb_poll()
1156 	struct usb_cdev_refdata refs;  in usb_read()  local
1164 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_read()
1168 	f = refs.rxfifo;  in usb_read()
1171 		usb_unref_device(cpd, &refs);  in usb_read()
1185 	if (refs.is_usbfs) {  in usb_read()
1258 	usb_unref_device(cpd, &refs);  in usb_read()
1266 	struct usb_cdev_refdata refs;  in usb_write()  local
1277 	err = usb_ref_device(cpd, &refs, 0 /* no uref */ );  in usb_write()
1281 	f = refs.txfifo;  in usb_write()
1284 		usb_unref_device(cpd, &refs);  in usb_write()
1298 	if (refs.is_usbfs) {  in usb_write()
1382 	usb_unref_device(cpd, &refs);  in usb_write()