diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index adddc66c9e8db1f66ad10ce45613c73d89479481..174eb857a6b45b85109c3321196685e1114b876f 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -918,6 +918,7 @@ static void usb_bus_init (struct usb_bus *bus)
 	bus->bandwidth_allocated = 0;
 	bus->bandwidth_int_reqs  = 0;
 	bus->bandwidth_isoc_reqs = 0;
+	mutex_init(&bus->usb_address0_mutex);
 
 	INIT_LIST_HEAD (&bus->bus_list);
 }
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 090469ebfcfff3a1fb686c4adbf0817bc1b27f22..726fa072c3fe3ddc1566f7b8ef0a3d4fa32714bc 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4016,8 +4016,6 @@ static int
 hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 		int retry_counter)
 {
-	static DEFINE_MUTEX(usb_address0_mutex);
-
 	struct usb_device	*hdev = hub->hdev;
 	struct usb_hcd		*hcd = bus_to_hcd(hdev->bus);
 	int			i, j, retval;
@@ -4040,7 +4038,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 	if (oldspeed == USB_SPEED_LOW)
 		delay = HUB_LONG_RESET_TIME;
 
-	mutex_lock(&usb_address0_mutex);
+	mutex_lock(&hdev->bus->usb_address0_mutex);
 
 	/* Reset the device; full speed may morph to high speed */
 	/* FIXME a USB 2.0 device may morph into SuperSpeed on reset. */
@@ -4317,7 +4315,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 		hub_port_disable(hub, port1, 0);
 		update_devnum(udev, devnum);	/* for disconnect processing */
 	}
-	mutex_unlock(&usb_address0_mutex);
+	mutex_unlock(&hdev->bus->usb_address0_mutex);
 	return retval;
 }
 
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 6b7ec376fb4d98baa5ec5a8fa33fd2d83b06343e..d2465bc0e73c211011af86b1b05d74baa5ae2ab6 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -352,6 +352,8 @@ struct usb_bus {
 	struct usb_bus *hs_companion;	/* Companion EHCI bus, if any */
 	struct list_head bus_list;	/* list of busses */
 
+	struct mutex usb_address0_mutex; /* unaddressed device mutex */
+
 	int bandwidth_allocated;	/* on this bus: how much of the time
 					 * reserved for periodic (intr/iso)
 					 * requests is used, on average?