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| /linux/net/ipv4/ |
| H A D | igmp.c | diff e2401654dd0f5f3fb7a8d80dad9554d73d7ca394 Sun Sep 29 22:39:42 CEST 2013 Salam Noureddine <noureddine@aristanetworks.com> ipv4 igmp: use in_dev_put in timer handlers instead of __in_dev_put
It is possible for the timer handlers to run after the call to
ip_mc_down so use in_dev_put instead of __in_dev_put in the handler
function in order to do proper cleanup when the refcnt reaches 0.
Otherwise, the refcnt can reach zero without the in_device being
destroyed and we end up leaking a reference to the net_device and
see messages like the following,
unregister_netdevice: waiting for eth0 to become free. Usage count = 1
Tested on linux-3.4.43.
Signed-off-by: Salam Noureddine <noureddine@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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