Commit ec28cf73 authored by Stephen Hemminger's avatar Stephen Hemminger Committed by David S. Miller

fib_trie: handle empty tree

This fixes possible problems when trie_firstleaf() returns NULL
to trie_leafindex().
Signed-off-by: default avatarStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e4f8b5d4
......@@ -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;
}
......
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