net: sched: fix missing free per cpu on qstats

When a qdisc is using per cpu stats (currently just the ingress
qdisc) only the bstats are being freed. This also free's the qstats.

Fixes: b0ab6f92752b9f9d8 ("net: sched: enable per cpu qstats")
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 1 deletions

diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index e82a1ad80aa5..16bc83b2842a 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -658,8 +658,10 @@ static void qdisc_rcu_free(struct rcu_head *head)
 {
         struct Qdisc *qdisc = container_of(head, struct Qdisc, rcu_head);
 
-        if (qdisc_is_percpu_stats(qdisc))
+        if (qdisc_is_percpu_stats(qdisc)) {
                 free_percpu(qdisc->cpu_bstats);
+                free_percpu(qdisc->cpu_qstats);
+        }
 
         kfree((char *) qdisc - qdisc->padded);
 }