Commit ec28cf73 authored Feb 11, 2008 by Stephen Hemminger Committed by David S. Miller Feb 12, 2008

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>

parent e4f8b5d4

net/ipv4/fib_trie.c

+2 −4

Original line number	Diff line number	Diff line
		@@ -1762,11 +1762,9 @@ static struct leaf trie_leafindex(struct trie t, int index)
		{
		struct leaf *l = trie_firstleaf(t);

		while (index-- > 0) {
		while (l && index-- > 0)
		l = trie_nextleaf(l);
		if (!l)
		break;
		}

		return l;
		}