From: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Date: Thu, 10 Aug 2017 09:31:40 +0000 (+0300)
Subject: net/sched/hfsc: allocate tcf block for hfsc root class
X-Git-Tag: Ubuntu-5.0.0-8.9~4277^2~26
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=8d55373875052b891ae72c9bcaf9c2d7178676c0;p=mirror_ubuntu-disco-kernel.git

net/sched/hfsc: allocate tcf block for hfsc root class

Without this filters cannot be attached.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Fixes: 6529eaba33f0 ("net: sched: introduce tcf block infractructure")
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index b52f74610dc7..3ad02bbe6903 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1428,6 +1428,10 @@ hfsc_init_qdisc(struct Qdisc *sch, struct nlattr *opt)
 		return err;
 	q->eligible = RB_ROOT;
 
+	err = tcf_block_get(&q->root.block, &q->root.filter_list);
+	if (err)
+		goto err_tcf;
+
 	q->root.cl_common.classid = sch->handle;
 	q->root.refcnt  = 1;
 	q->root.sched   = q;
@@ -1447,6 +1451,10 @@ hfsc_init_qdisc(struct Qdisc *sch, struct nlattr *opt)
 	qdisc_watchdog_init(&q->watchdog, sch);
 
 	return 0;
+
+err_tcf:
+	qdisc_class_hash_destroy(&q->clhash);
+	return err;
 }
 
 static int