pkt_sched: Fix noqueue_qdisc initialization.

Like noop_qdisc, it needs a dummy backpointer and
explicit qdisc->q.lock initialization.

Based upon a report by Stephen Hemminger.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 14cc443d0490..522a41a9f904 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -340,12 +340,19 @@ static struct Qdisc_ops noqueue_qdisc_ops __read_mostly = {
         .owner          =       THIS_MODULE,
 };
 
+static struct Qdisc noqueue_qdisc;
+static struct netdev_queue noqueue_netdev_queue = {
+        .qdisc          =       &noqueue_qdisc,
+};
+
 static struct Qdisc noqueue_qdisc = {
         .enqueue        =       NULL,
         .dequeue        =       noop_dequeue,
         .flags          =       TCQ_F_BUILTIN,
         .ops            =       &noqueue_qdisc_ops,
         .list           =       LIST_HEAD_INIT(noqueue_qdisc.list),
+        .q.lock         =       __SPIN_LOCK_UNLOCKED(noqueue_qdisc.q.lock),
+        .dev_queue      =       &noqueue_netdev_queue,
 };