From: Xiaodong Xu <[email protected]>

When PPPOE is running over a virtual ethernet interface (e.g., a
bonding interface) and the user tries to delete the interface in case
the PPPOE state is ZOMBIE, the kernel will loop forever while
unregistering net_device for the reference count is not decreased to
zero which should have been done with dev_put().

Signed-off-by: Xiaodong Xu <[email protected]>

---

--- linux/drivers/net/ppp/pppoe.c.orig  2012-09-19 11:49:27.921826868 +0800
+++ linux/drivers/net/ppp/pppoe.c       2012-09-22 17:44:03.642730082 +0800
@@ -570,7 +570,7 @@ static int pppoe_release(struct socket *

        po = pppox_sk(sk);

-       if (sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND)) {
+       if (sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND | PPPOX_ZOMBIE)) {
                dev_put(po->pppoe_dev);
                po->pppoe_dev = NULL;
        }

-- 
Regards,
Xiaodong Xu
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