tree e848267fc6f9946075a0440be8b0a8ac6ef0c58a
parent e4f8b5d4edc1edb0709531bd1a342655d5e8b98e
author Stephen Hemminger <shemminger@vyatta.com> 1202793169 -0800
committer David S. Miller <davem@davemloft.net> 1202867610 -0800

fib_trie: handle empty tree

This fixes possible problems when trie_firstleaf() returns NULL
to trie_leafindex().

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>