diff --git a/[refs] b/[refs]
index 8afdf10f8b8d..dc34078aed05 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f8033827d8e92db6159d34ed45c608522674ecd8
+refs/heads/master: 77571f05a483c0259e42ba2f482c82debc9a63af
diff --git a/trunk/drivers/usb/core/urb.c b/trunk/drivers/usb/core/urb.c
index c0b1ae25ae2a..47111e88f791 100644
--- a/trunk/drivers/usb/core/urb.c
+++ b/trunk/drivers/usb/core/urb.c
@@ -601,15 +601,20 @@ EXPORT_SYMBOL_GPL(usb_kill_anchored_urbs);
 void usb_unlink_anchored_urbs(struct usb_anchor *anchor)
 {
 	struct urb *victim;
+	unsigned long flags;
 
-	spin_lock_irq(&anchor->lock);
+	spin_lock_irqsave(&anchor->lock, flags);
 	while (!list_empty(&anchor->urb_list)) {
 		victim = list_entry(anchor->urb_list.prev, struct urb,
 				    anchor_list);
+		usb_get_urb(victim);
+		spin_unlock_irqrestore(&anchor->lock, flags);
 		/* this will unanchor the URB */
 		usb_unlink_urb(victim);
+		usb_put_urb(victim);
+		spin_lock_irqsave(&anchor->lock, flags);
 	}
-	spin_unlock_irq(&anchor->lock);
+	spin_unlock_irqrestore(&anchor->lock, flags);
 }
 EXPORT_SYMBOL_GPL(usb_unlink_anchored_urbs);