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net/sched: fix refcnt leak in the error path of tcf_vlan_init()

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Similarly to what was done with commit a52956dfc5 ("net sched actions:
fix refcnt leak in skbmod"), fix the error path of tcf_vlan_init() to avoid
refcnt leaks when wrong value of TCA_VLAN_PUSH_VLAN_PROTOCOL is given.

Fixes: 5026c9b1ba ("net sched: vlan action fix late binding")
CC: Roman Mashak <mrv@mojatatu.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Davide Caratti 2018-05-16 12:54:29 +02:00 committed by David S. Miller
parent e49ac9679e
commit 5a4931ae01
1 changed files with 2 additions and 0 deletions
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2
net/sched/act_vlan.c
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@ -161,6 +161,8 @@ static int tcf_vlan_init(struct net *net, struct nlattr *nla,
case htons(ETH_P_8021AD):
break;
default:
if (exists)
tcf_idr_release(*a, bind);
return -EPROTONOSUPPORT;
}
} else {