diff --git a/[refs] b/[refs]
index 086ae5f77bd9..18eb62310b6a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1724757e5ab5219b46876ac6e4e362a4b2dcfa86
+refs/heads/master: 719df469cb51199316ae2a11c75a8046be34b899
diff --git a/trunk/include/linux/usb.h b/trunk/include/linux/usb.h
index 41d1a644c9d4..2d1ac5058534 100644
--- a/trunk/include/linux/usb.h
+++ b/trunk/include/linux/usb.h
@@ -796,6 +796,10 @@ typedef void (*usb_complete_t)(struct urb *, struct pt_regs *);
  * of the iso_frame_desc array, and the number of errors is reported in
  * error_count.  Completion callbacks for ISO transfers will normally
  * (re)submit URBs to ensure a constant transfer rate.
+ *
+ * Note that even fields marked "public" should not be touched by the driver
+ * when the urb is owned by the hcd, that is, since the call to
+ * usb_submit_urb() till the entry into the completion routine.
  */
 struct urb
 {
@@ -803,12 +807,12 @@ struct urb
 	struct kref kref;		/* reference count of the URB */
 	spinlock_t lock;		/* lock for the URB */
 	void *hcpriv;			/* private data for host controller */
-	struct list_head urb_list;	/* list pointer to all active urbs */
 	int bandwidth;			/* bandwidth for INT/ISO request */
 	atomic_t use_count;		/* concurrent submissions counter */
 	u8 reject;			/* submissions will fail */
 
 	/* public, documented fields in the urb that can be used by drivers */
+	struct list_head urb_list;	/* list head for use by the urb owner */
 	struct usb_device *dev; 	/* (in) pointer to associated device */
 	unsigned int pipe;		/* (in) pipe information */
 	int status;			/* (return) non-ISO status */