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net/sched: act_sample: Fix error path in init 

Fix error path of in sample init, by releasing the tc hash in case of
failure in psample_group creation.

Fixes: 5c5670fae4 ("net/sched: Introduce sample tc action")
Reported-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yotam Gigi 2017-01-31 11:33:53 +02:00 committed by David S. Miller
parent 6107dbdb64
commit cadb9c9fdb
1 changed files with 4 additions and 1 deletions
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5
net/sched/act_sample.c
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@ -81,8 +81,11 @@ static int tcf_sample_init(struct net *net, struct nlattr *nla,
s->rate = nla_get_u32(tb[TCA_SAMPLE_RATE]);
s->psample_group_num = nla_get_u32(tb[TCA_SAMPLE_PSAMPLE_GROUP]);
psample_group = psample_group_get(net, s->psample_group_num);
if (!psample_group)
if (!psample_group) {
if (ret == ACT_P_CREATED)
tcf_hash_release(*a, bind);
return -ENOMEM;
}
RCU_INIT_POINTER(s->psample_group, psample_group);
if (tb[TCA_SAMPLE_TRUNC_SIZE]) {