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authorJiri Pirko <jiri@mellanox.com>2017-12-15 12:40:13 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-01-02 20:31:12 +0100
commit11295730446fd654aeef28a575d801f3679424fa (patch)
treedcdc60588ebbf60cf7a68f50d6757340a3f64291 /net/sched/sch_ingress.c
parent215b69e208089f42c29f9343ef11f4adc6ea6f6b (diff)
net: sched: fix static key imbalance in case of ingress/clsact_init error
[ Upstream commit b59e6979a86384e68b0ab6ffeab11f0034fba82d ] Move static key increments to the beginning of the init function so they pair 1:1 with decrements in ingress/clsact_destroy, which is called in case ingress/clsact_init fails. Fixes: 6529eaba33f0 ("net: sched: introduce tcf block infractructure") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/sched/sch_ingress.c')
-rw-r--r--net/sched/sch_ingress.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/net/sched/sch_ingress.c b/net/sched/sch_ingress.c
index 44de4ee51ce9..a08a32fa0949 100644
--- a/net/sched/sch_ingress.c
+++ b/net/sched/sch_ingress.c
@@ -59,11 +59,12 @@ static int ingress_init(struct Qdisc *sch, struct nlattr *opt)
struct net_device *dev = qdisc_dev(sch);
int err;
+ net_inc_ingress_queue();
+
err = tcf_block_get(&q->block, &dev->ingress_cl_list);
if (err)
return err;
- net_inc_ingress_queue();
sch->flags |= TCQ_F_CPUSTATS;
return 0;
@@ -153,6 +154,9 @@ static int clsact_init(struct Qdisc *sch, struct nlattr *opt)
struct net_device *dev = qdisc_dev(sch);
int err;
+ net_inc_ingress_queue();
+ net_inc_egress_queue();
+
err = tcf_block_get(&q->ingress_block, &dev->ingress_cl_list);
if (err)
return err;
@@ -161,9 +165,6 @@ static int clsact_init(struct Qdisc *sch, struct nlattr *opt)
if (err)
return err;
- net_inc_ingress_queue();
- net_inc_egress_queue();
-
sch->flags |= TCQ_F_CPUSTATS;
return 0;