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-rw-r--r--net/sched/cls_api.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index aad6a67..baef987 100644
--- 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;
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