device refcnt leak

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Hi,

   I created a socket with AF_INET6, SOCK_RAW, IPPROTO_RAW arguments.

Framed a packet including the IPv6 header destined to a global IPv6
unicast address for which a route exists in the stack and sent it
through an interface (specified with IPV6_PKTINFO).

The packet came out the device properly.

Now when I tried to make the network device down, i get the following
messages continuously on the console.

"unregister_netdevice: waiting for eth1 to become free. Usage count = 3"

Seems like the device refcnt leaked when passing packet through
rawv6_sendmsg().

I am using linux version 2.6.14

Appreciate your help on this problem.

Thanks,
Kiran
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