[PKT_SCHED]: act_api: Fix module leak while flushing actions

Module reference needs to be given back if message header
construction fails.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/act_api.c

diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 599423c..0972247 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -602,8 +602,8 @@
 	return err;
 
 rtattr_failure:
-	module_put(a->ops->owner);
 nlmsg_failure:
+	module_put(a->ops->owner);
 err_out:
 	kfree_skb(skb);
 	kfree(a);