From: Ivan Khoronzhuk <[email protected]>
[ Upstream commit 51650d33b2771acd505068da669cf85cffac369a ]
In error case, all entries should be freed from the sched list
before deleting it. For simplicity use rcu way.
Fixes: 5a781ccbd19e46 ("tc: Add support for configuring the taprio scheduler")
Acked-by: Vinicius Costa Gomes <[email protected]>
Signed-off-by: Ivan Khoronzhuk <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/sched/sch_taprio.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c
index 9ecfb8f5902a4..8be89aa52b6e8 100644
--- a/net/sched/sch_taprio.c
+++ b/net/sched/sch_taprio.c
@@ -849,7 +849,8 @@ static int taprio_change(struct Qdisc *sch, struct nlattr
*opt,
spin_unlock_bh(qdisc_lock(sch));
free_sched:
- kfree(new_admin);
+ if (new_admin)
+ call_rcu(&new_admin->rcu, taprio_free_sched_cb);
return err;
}
--
2.20.1
