diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c
index afb0896..b5320a8 100644
--- a/drivers/watchdog/pcwd_usb.c
+++ b/drivers/watchdog/pcwd_usb.c
@@ -609,9 +609,7 @@
 	/* check out the endpoint: it has to be Interrupt & IN */
 	endpoint = &iface_desc->endpoint[0].desc;
 
-	if (!((endpoint->bEndpointAddress & USB_DIR_IN) &&
-	     ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
-				== USB_ENDPOINT_XFER_INT))) {
+	if (!usb_endpoint_is_int_in(endpoint)) {
 		/* we didn't find a Interrupt endpoint with direction IN */
 		printk(KERN_ERR PFX "Couldn't find an INTR & IN endpoint\n");
 		return -ENODEV;