net: sched: fix error return code in tcf_del_walker()

When nla_put_u32() fails, 'ret' could be 0, it should
return error code in tcf_del_walker().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yang Yingliang 2021-06-17 16:02:07 +08:00 committed by David S. Miller
parent b244163f2c
commit 55d96f72e8

View file

@ -381,7 +381,8 @@ static int tcf_del_walker(struct tcf_idrinfo *idrinfo, struct sk_buff *skb,
}
mutex_unlock(&idrinfo->lock);
if (nla_put_u32(skb, TCA_FCNT, n_i))
ret = nla_put_u32(skb, TCA_FCNT, n_i);
if (ret)
goto nla_put_failure;
nla_nest_end(skb, nest);