net-sched: Fix actions flushing

Flushing of actions has been broken since we changed
the semantics of netlink parsed tb[X] to mean X is an attribute type.
This makes the flushing work.

Signed-off-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 26c7e1f9a35002d3bf2dd9f825d9a54041bb96a5..88b57331d130d78090d5fa3b817a20c8a8eaa28b 100644 (file)
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -790,6 +790,8 @@ static int tca_action_flush(struct nlattr *nla, struct nlmsghdr *n, u32 pid)
        err = a->ops->walk(skb, &dcb, RTM_DELACTION, a);
        if (err < 0)
                goto nla_put_failure;
+       if (err == 0)
+               goto noflush_out;
 
        nla_nest_end(skb, nest);
 
@@ -807,6 +809,7 @@ nla_put_failure:
 nlmsg_failure:
        module_put(a->ops->owner);
 err_out:
+noflush_out:
        kfree_skb(skb);
        kfree(a);
        return err;
@@ -824,8 +827,10 @@ tca_action_gd(struct nlattr *nla, struct nlmsghdr *n, u32 pid, int event)
                return ret;
 
        if (event == RTM_DELACTION && n->nlmsg_flags&NLM_F_ROOT) {
-               if (tb[0] != NULL && tb[1] == NULL)
-                       return tca_action_flush(tb[0], n, pid);
+               if (tb[1] != NULL)
+                       return tca_action_flush(tb[1], n, pid);
+               else
+                       return -EINVAL;
        }
 
        for (i = 1; i <= TCA_ACT_MAX_PRIO && tb[i]; i++) {