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-rw-r--r--net/sched/cls_basic.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c
index fc399db86f11..0b8c3ace671f 100644
--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -96,11 +96,14 @@ static void basic_delete_filter(struct rcu_head *head)
kfree(f);
}
-static void basic_destroy(struct tcf_proto *tp)
+static bool basic_destroy(struct tcf_proto *tp, bool force)
{
struct basic_head *head = rtnl_dereference(tp->root);
struct basic_filter *f, *n;
+ if (!force && !list_empty(&head->flist))
+ return false;
+
list_for_each_entry_safe(f, n, &head->flist, link) {
list_del_rcu(&f->link);
tcf_unbind_filter(tp, &f->res);
@@ -108,6 +111,7 @@ static void basic_destroy(struct tcf_proto *tp)
}
RCU_INIT_POINTER(tp->root, NULL);
kfree_rcu(head, rcu);
+ return true;
}
static int basic_delete(struct tcf_proto *tp, unsigned long arg)