diff --git a/[refs] b/[refs]
index f53cf8e13e24..5b42a760b6d1 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 99ac5b1e9536f142461681fa6143a947d66b4279
+refs/heads/master: 2f5bb665ba7a14c5842fa2e1cde2be039843a2a2
diff --git a/trunk/drivers/usb/host/ehci-hcd.c b/trunk/drivers/usb/host/ehci-hcd.c
index efee426a2465..8b75e4279a47 100644
--- a/trunk/drivers/usb/host/ehci-hcd.c
+++ b/trunk/drivers/usb/host/ehci-hcd.c
@@ -1041,14 +1041,9 @@ static void unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
 
 	/* defer till later if busy */
 	if (ehci->async_unlink) {
-		struct ehci_qh		*last;
-
-		for (last = ehci->async_unlink;
-				last->unlink_next;
-				last = last->unlink_next)
-			continue;
 		qh->qh_state = QH_STATE_UNLINK_WAIT;
-		last->unlink_next = qh;
+		ehci->async_unlink_last->unlink_next = qh;
+		ehci->async_unlink_last = qh;
 
 	/* start IAA cycle */
 	} else
diff --git a/trunk/drivers/usb/host/ehci-q.c b/trunk/drivers/usb/host/ehci-q.c
index 8e80cde8c35e..5193612c96ea 100644
--- a/trunk/drivers/usb/host/ehci-q.c
+++ b/trunk/drivers/usb/host/ehci-q.c
@@ -1227,6 +1227,8 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
 
 	qh->qh_state = QH_STATE_UNLINK;
 	ehci->async_unlink = qh;
+	if (!qh->unlink_next)
+		ehci->async_unlink_last = qh;
 
 	prev = ehci->async;
 	while (prev->qh_next.qh != qh)
diff --git a/trunk/drivers/usb/host/ehci.h b/trunk/drivers/usb/host/ehci.h
index 3c6c07c0956a..475f23e10bbf 100644
--- a/trunk/drivers/usb/host/ehci.h
+++ b/trunk/drivers/usb/host/ehci.h
@@ -82,6 +82,7 @@ struct ehci_hcd {			/* one per controller */
 	struct ehci_qh		*async;
 	struct ehci_qh		*dummy;		/* For AMD quirk use */
 	struct ehci_qh		*async_unlink;
+	struct ehci_qh		*async_unlink_last;
 	struct ehci_qh		*qh_scan_next;
 	unsigned		scanning : 1;