although we can not say it is surely a bug.
  it is better to set urb->hcpriv = NULL, after finish calling urb_free_priv.


Signed-off-by: Chen Gang <gang.c...@asianux.com>
---
 drivers/usb/host/ohci-q.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c
index 7482cfb..88731b7 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;
 
-- 
1.7.10.4
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