diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 9a9012fd284b48668e7feb7d46b32bcfd97810f2..ec3438dc8ee5e99d68346c7d428c7fae75b4c148 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -892,7 +892,7 @@ static int acm_probe (struct usb_interface *intf,
 
 
 	/* workaround for switched endpoints */
-	if ((epread->bEndpointAddress & USB_DIR_IN) != USB_DIR_IN) {
+	if (!usb_endpoint_dir_in(epread)) {
 		/* descriptors are swapped */
 		struct usb_endpoint_descriptor *t;
 		dev_dbg(&intf->dev,"The data interface has switched endpoints");