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| author |   WANG Cong <xiyou.wangcong@gmail.com> | 2016-08-19 12:36:54 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-08-22 17:02:31 -0700 |
| commit | b9a24bb76bf611a5268ceffe04219e6ad264559b (patch) | |
| tree | 78aefca9f8e4da33abea28a0ff61fbc59fd2c66d /net/sched/cls_basic.c | |
| parent | Revert "l2tp: Refactor the codes with existing macros instead of literal number" (diff) | |
| download | linux-dev-b9a24bb76bf611a5268ceffe04219e6ad264559b.tar.xz linux-dev-b9a24bb76bf611a5268ceffe04219e6ad264559b.zip | |
net_sched: properly handle failure case of tcf_exts_init()
After commit 22dc13c837c3 ("net_sched: convert tcf_exts from list to pointer array")
we do dynamic allocation in tcf_exts_init(), therefore we need
to handle the ENOMEM case properly.
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/sched/cls_basic.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c index 0b8c3ace671f..eb219b78cd49 100644 --- a/net/sched/cls_basic.c +++ b/net/sched/cls_basic.c @@ -138,10 +138,12 @@ static int basic_set_parms(struct net *net, struct tcf_proto *tp, struct tcf_exts e; struct tcf_ematch_tree t; - tcf_exts_init(&e, TCA_BASIC_ACT, TCA_BASIC_POLICE); - err = tcf_exts_validate(net, tp, tb, est, &e, ovr); + err = tcf_exts_init(&e, TCA_BASIC_ACT, TCA_BASIC_POLICE); if (err < 0) return err; + err = tcf_exts_validate(net, tp, tb, est, &e, ovr); + if (err < 0) + goto errout; err = tcf_em_tree_validate(tp, tb[TCA_BASIC_EMATCHES], &t); if (err < 0) @@ -189,7 +191,10 @@ static int basic_change(struct net *net, struct sk_buff *in_skb, if (!fnew) return -ENOBUFS; - tcf_exts_init(&fnew->exts, TCA_BASIC_ACT, TCA_BASIC_POLICE); + err = tcf_exts_init(&fnew->exts, TCA_BASIC_ACT, TCA_BASIC_POLICE); + if (err < 0) + goto errout; + err = -EINVAL; if (handle) { fnew->handle = handle; @@ -226,6 +231,7 @@ static int basic_change(struct net *net, struct sk_buff *in_skb, return 0; errout: + tcf_exts_destroy(&fnew->exts); kfree(fnew); return err; } |