diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index cd4d417..8c87265 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -281,7 +281,7 @@
 void usb_show_tree_graph(struct usb_device *dev, char *pre)
 {
 	int i, index;
-	int has_child, last_child, port;
+	int has_child, last_child;
 
 	index = strlen(pre);
 	printf(" %s", pre);
@@ -300,7 +300,6 @@
 				/* found our pointer, see if we have a
 				 * little sister
 				 */
-				port = i;
 				while (i++ < dev->parent->maxchild) {
 					if (dev->parent->children[i] != NULL) {
 						/* found a sister */