1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 30dd2636f26..b1b85abb9a2 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -413,8 +413,13 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
                 } else {
                         snprintf(dev->devpath, sizeof dev->devpath,
                                 "%s.%d", parent->devpath, port1);
-                        dev->route = parent->route +
-                                (port1 << ((parent->level - 1)*4));
+                        /* Route string assumes hubs have less than 16 ports */
+                        if (port1 < 15)
+                                dev->route = parent->route +
+                                        (port1 << ((parent->level - 1)*4));
+                        else
+                                dev->route = parent->route +
+                                        (15 << ((parent->level - 1)*4));
                 }
 
                 dev->dev.parent = &parent->dev;