diff options
| -rw-r--r-- | net/sched/act_api.c | 46 | ||||
| -rw-r--r-- | net/sched/cls_api.c | 2 |
2 files changed, 16 insertions, 32 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 6f103fd76c17..2b69e537baa9 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -352,18 +352,16 @@ int tcf_action_exec(struct sk_buff *skb, const struct list_head *actions, } list_for_each_entry(a, actions, list) { repeat: - if (a->ops) { - ret = a->ops->act(skb, a, res); - if (TC_MUNGED & skb->tc_verd) { - /* copied already, allow trampling */ - skb->tc_verd = SET_TC_OK2MUNGE(skb->tc_verd); - skb->tc_verd = CLR_TC_MUNGED(skb->tc_verd); - } - if (ret == TC_ACT_REPEAT) - goto repeat; /* we need a ttl - JHS */ - if (ret != TC_ACT_PIPE) - goto exec_done; + ret = a->ops->act(skb, a, res); + if (TC_MUNGED & skb->tc_verd) { + /* copied already, allow trampling */ + skb->tc_verd = SET_TC_OK2MUNGE(skb->tc_verd); + skb->tc_verd = CLR_TC_MUNGED(skb->tc_verd); } + if (ret == TC_ACT_REPEAT) + goto repeat; /* we need a ttl - JHS */ + if (ret != TC_ACT_PIPE) + goto exec_done; } exec_done: return ret; @@ -375,27 +373,16 @@ void tcf_action_destroy(struct list_head *actions, int bind) struct tc_action *a, *tmp; list_for_each_entry_safe(a, tmp, actions, list) { - if (a->ops) { - if (a->ops->cleanup(a, bind) == ACT_P_DELETED) - module_put(a->ops->owner); - list_del(&a->list); - kfree(a); - } else { - /*FIXME: Remove later - catch insertion bugs*/ - WARN(1, "tcf_action_destroy: BUG? destroying NULL ops\n"); - list_del(&a->list); - kfree(a); - } + if (a->ops->cleanup(a, bind) == ACT_P_DELETED) + module_put(a->ops->owner); + list_del(&a->list); + kfree(a); } } int tcf_action_dump_old(struct sk_buff *skb, struct tc_action *a, int bind, int ref) { - int err = -EINVAL; - - if (a->ops == NULL) - return err; return a->ops->dump(skb, a, bind, ref); } @@ -406,9 +393,6 @@ tcf_action_dump_1(struct sk_buff *skb, struct tc_action *a, int bind, int ref) unsigned char *b = skb_tail_pointer(skb); struct nlattr *nest; - if (a->ops == NULL) - return err; - if (nla_put_string(skb, TCA_KIND, a->ops->kind)) goto nla_put_failure; if (tcf_action_copy_stats(skb, a, 0)) @@ -684,7 +668,7 @@ tcf_action_get_1(struct nlattr *nla, struct nlmsghdr *n, u32 portid) INIT_LIST_HEAD(&a->list); err = -EINVAL; a->ops = tc_lookup_action(tb[TCA_ACT_KIND]); - if (a->ops == NULL) + if (a->ops == NULL) /* could happen in batch of actions */ goto err_free; err = -ENOENT; if (a->ops->lookup(a, index) == 0) @@ -760,7 +744,7 @@ static int tca_action_flush(struct net *net, struct nlattr *nla, err = -EINVAL; kind = tb[TCA_ACT_KIND]; a->ops = tc_lookup_action(kind); - if (a->ops == NULL) + if (a->ops == NULL) /*some idjot trying to flush unknown action */ goto err_out; nlh = nlmsg_put(skb, portid, n->nlmsg_seq, RTM_DELACTION, sizeof(*t), 0); diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 12e882ef596b..d8c42b1b88e5 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -577,7 +577,7 @@ int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts) } else if (exts->police) { struct tc_action *act = tcf_exts_first_act(exts); nest = nla_nest_start(skb, exts->police); - if (nest == NULL) + if (nest == NULL || !act) goto nla_put_failure; if (tcf_action_dump_old(skb, act, 0, 0) < 0) goto nla_put_failure; |