1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 67e2e582e463..e5ff161776fa 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -223,6 +223,15 @@ static void ksuspend_usb_cleanup(void)
 
 #endif  /* CONFIG_PM */
 
+
+/* Returns 1 if @usb_bus is WUSB, 0 otherwise */
+static unsigned usb_bus_is_wusb(struct usb_bus *bus)
+{
+        struct usb_hcd *hcd = container_of(bus, struct usb_hcd, self);
+        return hcd->wireless;
+}
+
+
 /**
  * usb_alloc_dev - usb device constructor (usbcore-internal)
  * @parent: hub to which device is connected; null to allocate a root hub
@@ -239,6 +248,8 @@ struct usb_device *
 usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1)
 {
         struct usb_device *dev;
+        struct usb_hcd *usb_hcd = container_of(bus, struct usb_hcd, self);
+        unsigned root_hub = 0;
 
         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
         if (!dev)
@@ -275,6 +286,7 @@ usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1)
 
                 dev->dev.parent = bus->controller;
                 sprintf(&dev->dev.bus_id[0], "usb%d", bus->busnum);
+                root_hub = 1;
         } else {
                 /* match any labeling on the hubs; it's one-based */
                 if (parent->devpath[0] == '0')
@@ -301,6 +313,12 @@ usb_alloc_dev(struct usb_device *parent, struct usb_bus *bus, unsigned port1)
         INIT_DELAYED_WORK(&dev->autosuspend, usb_autosuspend_work);
         dev->autosuspend_delay = usb_autosuspend_delay * HZ;
 #endif
+        if (root_hub)   /* Root hub always ok [and always wired] */
+                dev->authorized = 1;
+        else {
+                dev->authorized = usb_hcd->authorized_default;
+                dev->wusb = usb_bus_is_wusb(bus)? 1 : 0;
+        }
         return dev;
 }