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[IPV6]: Make sure fib6_rule_lookup doesn't return NULL

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The callers of fib6_rule_lookup don't expect it to return NULL,
therefore it must return ip6_null_entry whenever fib_rule_lookup fails.

Signed-off-by: Ville Nuorvala <vnuorval@tcs.hut.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ville Nuorvala 2006-08-08 16:44:17 -07:00 committed by David S. Miller
parent 99a92ff504
commit b142955324
1 changed files with 5 additions and 1 deletions
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6
net/ipv6/fib6_rules.c
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@ -63,7 +63,11 @@ struct dst_entry *fib6_rule_lookup(struct flowi *fl, int flags,
if (arg.rule)
fib_rule_put(arg.rule);
return (struct dst_entry *) arg.result;
if (arg.result)
return (struct dst_entry *) arg.result;
dst_hold(&ip6_null_entry.u.dst);
return &ip6_null_entry.u.dst;
}
static int fib6_rule_action(struct fib_rule *rule, struct flowi *flp,