diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c
index 7482cfbe8c5e48a29b1b865a9d799b49043e5bc6..88731b7c5f4290332409e4fca11ded93051c639c 100644
--- a/drivers/usb/host/ohci-q.c
+++ b/drivers/usb/host/ohci-q.c
@@ -44,6 +44,7 @@ __acquires(ohci->lock)
 	// ASSERT (urb->hcpriv != 0);
 
 	urb_free_priv (ohci, urb->hcpriv);
+	urb->hcpriv = NULL;
 	if (likely(status == -EINPROGRESS))
 		status = 0;