3.0-stable review patch.  If anyone has any objections, please let me know.

------------------


From: Hagen Paul Pfeifer <[email protected]>

[ Upstream commit eb10192447370f19a215a8c2749332afa1199d46 ]

Not now, but it looks you are correct. q->qdisc is NULL until another
additional qdisc is attached (beside tfifo). See 50612537e9ab2969312.
The following patch should work.

From: Hagen Paul Pfeifer <[email protected]>

netem: catch NULL pointer by updating the real qdisc statistic

Reported-by: Vijay Subramanian <[email protected]>
Signed-off-by: Hagen Paul Pfeifer <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 net/sched/sch_netem.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -381,8 +381,8 @@ static int netem_enqueue(struct sk_buff
                q->counter = 0;
 
                __skb_queue_head(&q->qdisc->q, skb);
-               q->qdisc->qstats.backlog += qdisc_pkt_len(skb);
-               q->qdisc->qstats.requeues++;
+               sch->qstats.backlog += qdisc_pkt_len(skb);
+               sch->qstats.requeues++;
                ret = NET_XMIT_SUCCESS;
        }
 


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