pkt_sched: sch_generic: Kfree gso_skb in qdisc_reset()

Since gso_skb is re-used for qdisc_peek_dequeued(), and this skb is
counted in the qdisc->q.qlen, it has to be kfreed during qdisc_reset()
when qlen is zeroed.

With help from David S. Miller <davem@davemloft.net>

Signed-off-by: Jarek Poplawski <jarkao2@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 318c9f656e8e..1192da229835 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -542,6 +542,9 @@ void qdisc_reset(struct Qdisc *qdisc)
 
         if (ops->reset)
                 ops->reset(qdisc);
+
+        kfree_skb(qdisc->gso_skb);
+        qdisc->gso_skb = NULL;
 }
 EXPORT_SYMBOL(qdisc_reset);