diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index c7fad3992..e11cc204b 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -156,7 +156,7 @@ ep_matches (
 
 	/* report address */
 	if (isdigit (ep->name [2])) {
-		u8	num = simple_strtol (&ep->name [2], NULL, 10);
+		u8	num = simple_strtoul (&ep->name [2], NULL, 10);
 		desc->bEndpointAddress |= num;
 #ifdef	MANY_ENDPOINTS
 	} else if (desc->bEndpointAddress & USB_DIR_IN) {