sch_netem: fix skb leak in netem_enqueue()

[platform/kernel/linux-exynos.git] / include / net / sch_generic.h

diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 6073e8b..f59acac 100644 (file)
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -723,6 +723,16 @@ static inline void __qdisc_drop(struct sk_buff *skb, struct sk_buff **to_free)
        *to_free = skb;
 }
 
+static inline void __qdisc_drop_all(struct sk_buff *skb,
+                                   struct sk_buff **to_free)
+{
+       if (skb->prev)
+               skb->prev->next = *to_free;
+       else
+               skb->next = *to_free;
+       *to_free = skb;
+}
+
 static inline unsigned int __qdisc_queue_drop_head(struct Qdisc *sch,
                                                   struct qdisc_skb_head *qh,
                                                   struct sk_buff **to_free)
@@ -843,6 +853,15 @@ static inline int qdisc_drop(struct sk_buff *skb, struct Qdisc *sch,
        return NET_XMIT_DROP;
 }
 
+static inline int qdisc_drop_all(struct sk_buff *skb, struct Qdisc *sch,
+                                struct sk_buff **to_free)
+{
+       __qdisc_drop_all(skb, to_free);
+       qdisc_qstats_drop(sch);
+
+       return NET_XMIT_DROP;
+}
+
 /* Length to Time (L2T) lookup in a qdisc_rate_table, to determine how
    long it will take to send a packet given its size.
  */