cls_api.c: Fix dumping of non-existing actions' stats.

[pandora-kernel.git] / net / sched / cls_api.c

diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index aad6a67..baef987 100644 (file)
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -556,8 +556,9 @@ void tcf_exts_change(struct tcf_proto *tp, struct tcf_exts *dst,
 }
 EXPORT_SYMBOL(tcf_exts_change);
 
-#define tcf_exts_first_act(ext) \
-               list_first_entry(&(exts)->actions, struct tc_action, list)
+#define tcf_exts_first_act(ext)                                        \
+       list_first_entry_or_null(&(exts)->actions,              \
+                                struct tc_action, list)
 
 int tcf_exts_dump(struct sk_buff *skb, struct tcf_exts *exts)
 {
@@ -603,7 +604,7 @@ int tcf_exts_dump_stats(struct sk_buff *skb, struct tcf_exts *exts)
 {
 #ifdef CONFIG_NET_CLS_ACT
        struct tc_action *a = tcf_exts_first_act(exts);
-       if (tcf_action_copy_stats(skb, a, 1) < 0)
+       if (a != NULL && tcf_action_copy_stats(skb, a, 1) < 0)
                return -1;
 #endif
        return 0;