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[INET]: Small possible memory leak in FIB rules

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This patch fixes a small memory leak. Default fib rules can be deleted by
the user if the rule does not carry FIB_RULE_PERMANENT flag, f.e. by
	ip rule flush

Such a rule will not be freed as the ref-counter has 2 on start and becomes
clearly unreachable after removal.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Acked-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Denis V. Lunev
2007-11-10 22:12:03 -08:00
committed by David S. Miller
parent 33d36bb83c
commit 2994c63863
5 changed files with 62 additions and 64 deletions
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13
net/decnet/dn_rules.c
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@@ -48,15 +48,6 @@ struct dn_fib_rule
u8 flags;
};
static struct dn_fib_rule default_rule = {
.common = {
.refcnt = ATOMIC_INIT(2),
.pref = 0x7fff,
.table = RT_TABLE_MAIN,
.action = FR_ACT_TO_TBL,
},
};
int dn_fib_lookup(struct flowi *flp, struct dn_fib_res *res)
{
@@ -262,8 +253,8 @@ static struct fib_rules_ops dn_fib_rules_ops = {
void __init dn_fib_rules_init(void)
{
list_add_tail(&default_rule.common.list,
&dn_fib_rules_ops.rules_list);
BUG_ON(fib_default_rule_add(&dn_fib_rules_ops, 0x7fff,
RT_TABLE_MAIN, 0));
fib_rules_register(&dn_fib_rules_ops);
}