From: Andrew Hendry <ahendry@tusc.com.au>

route add --x25 0/0 eth0
cat /proc/net/x25/route
reads the single routing entry forever.

This patch makes x25_get_route_idx behave the same as x25_get_socket_idx
which works correctly.
Signed-off-by: Andrew Hendry <ahendry@tusc.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>