diff --git a/sys/dev/usb/ohci.c b/sys/dev/usb/ohci.c
index 955b4d690703..de4688da0415 100644
--- a/sys/dev/usb/ohci.c
+++ b/sys/dev/usb/ohci.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: ohci.c,v 1.62 2000/01/18 20:11:00 augustss Exp $	*/
+/*	$NetBSD: ohci.c,v 1.63 2000/01/18 20:23:42 augustss Exp $	*/
 /*	$FreeBSD: src/sys/dev/usb/ohci.c,v 1.22 1999/11/17 22:33:40 n_hibma Exp $	*/
 
 /*
@@ -838,6 +838,8 @@ ohci_allocx(bus)
 		SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next);
 	else
 		xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT);
+	if (xfer != NULL)
+		memset(xfer, 0, sizeof *xfer);
 	return (xfer);
 }
 
diff --git a/sys/dev/usb/uhci.c b/sys/dev/usb/uhci.c
index 922513bd119a..52d0a713fa97 100644
--- a/sys/dev/usb/uhci.c
+++ b/sys/dev/usb/uhci.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: uhci.c,v 1.76 2000/01/18 20:11:00 augustss Exp $	*/
+/*	$NetBSD: uhci.c,v 1.77 2000/01/18 20:23:42 augustss Exp $	*/
 /*	$FreeBSD: src/sys/dev/usb/uhci.c,v 1.33 1999/11/17 22:33:41 n_hibma Exp $	*/
 
 /*
@@ -526,6 +526,8 @@ uhci_allocx(bus)
 		SIMPLEQ_REMOVE_HEAD(&sc->sc_free_xfers, xfer, next);
 	else
 		xfer = malloc(sizeof(*xfer), M_USB, M_NOWAIT);
+	if (xfer != NULL)
+		memset(xfer, 0, sizeof *xfer);
 	return (xfer);
 }
 
diff --git a/sys/dev/usb/usbdi.c b/sys/dev/usb/usbdi.c
index aa21241d8947..015c3156d586 100644
--- a/sys/dev/usb/usbdi.c
+++ b/sys/dev/usb/usbdi.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: usbdi.c,v 1.58 2000/01/18 20:11:01 augustss Exp $	*/
+/*	$NetBSD: usbdi.c,v 1.59 2000/01/18 20:23:42 augustss Exp $	*/
 /*	$FreeBSD: src/sys/dev/usb/usbdi.c,v 1.28 1999/11/17 22:33:49 n_hibma Exp $	*/
 
 /*
@@ -366,7 +366,6 @@ usbd_alloc_xfer(dev)
 	xfer = dev->bus->methods->allocx(dev->bus);
 	if (xfer == NULL)
 		return (NULL);
-	memset(xfer, 0, sizeof *xfer);
 	xfer->device = dev;
 	DPRINTFN(5,("usbd_alloc_xfer() = %p\n", xfer));
 	return (xfer);