net/sched: cls_matchall: Fix error path
Fix several error paths in matchall:
- Release reference to actions in case the hardware fails offloading
(relevant to skip_sw only)
- Fix error path in case tcf_exts initialization/validation fail
Fixes: bf3994d2ed
("net/sched: introduce Match-all classifier")
Signed-off-by: Yotam Gigi <yotamg@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
6f63db82d6
commit
ec2507d2a3
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@ -141,10 +141,12 @@ static int mall_set_parms(struct net *net, struct tcf_proto *tp,
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struct tcf_exts e;
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int err;
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tcf_exts_init(&e, TCA_MATCHALL_ACT, 0);
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err = tcf_exts_init(&e, TCA_MATCHALL_ACT, 0);
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if (err)
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return err;
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err = tcf_exts_validate(net, tp, tb, est, &e, ovr);
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if (err < 0)
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return err;
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goto errout;
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if (tb[TCA_MATCHALL_CLASSID]) {
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f->res.classid = nla_get_u32(tb[TCA_MATCHALL_CLASSID]);
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@ -154,6 +156,9 @@ static int mall_set_parms(struct net *net, struct tcf_proto *tp,
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tcf_exts_change(tp, &f->exts, &e);
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return 0;
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errout:
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tcf_exts_destroy(&e);
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return err;
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}
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static int mall_change(struct net *net, struct sk_buff *in_skb,
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@ -193,7 +198,9 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
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if (!f)
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return -ENOBUFS;
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tcf_exts_init(&f->exts, TCA_MATCHALL_ACT, 0);
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err = tcf_exts_init(&f->exts, TCA_MATCHALL_ACT, 0);
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if (err)
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goto err_exts_init;
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if (!handle)
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handle = 1;
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@ -202,13 +209,13 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
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err = mall_set_parms(net, tp, f, base, tb, tca[TCA_RATE], ovr);
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if (err)
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goto errout;
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goto err_set_parms;
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if (tc_should_offload(dev, tp, flags)) {
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err = mall_replace_hw_filter(tp, f, (unsigned long) f);
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if (err) {
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if (tc_skip_sw(flags))
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goto errout;
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goto err_replace_hw_filter;
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else
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err = 0;
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}
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@ -219,7 +226,10 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
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return 0;
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errout:
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err_replace_hw_filter:
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err_set_parms:
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tcf_exts_destroy(&f->exts);
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err_exts_init:
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kfree(f);
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return err;
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}
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