From: Paul Blakey <paulb@mellanox.com>
Date: Sun, 3 Jun 2018 10:06:13 +0300
Subject: cls_flower: Fix missing free of rhashtable
Patch-mainline: v4.18-rc1
Git-commit: de9dc650f05f5c427a623797342bb2870ceedd38
References: bsc#1109837

When destroying the instance, destroy the head rhashtable.

Fixes: 05cd271fd61a ("cls_flower: Support multiple masks per priority")
Reported-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Paul Blakey <paulb@mellanox.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 net/sched/cls_flower.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -326,6 +326,8 @@ static void fl_destroy_sleepable(struct
 	struct cls_fl_head *head = container_of(to_rcu_work(work),
 						struct cls_fl_head,
 						rwork);
+
+	rhashtable_destroy(&head->ht);
 	kfree(head);
 	module_put(THIS_MODULE);
 }