l2tp: hold tunnel in pppol2tp_connect()
Use l2tp_tunnel_get() in pppol2tp_connect() to ensure the tunnel isn't going to disappear while processing the rest of the function. Fixes: fd558d18 ("l2tp: Split pppol2tp patch into separate l2tp and ppp parts") Signed-off-by: NGuillaume Nault <g.nault@alphalink.fr> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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