1 files changed, 16 insertions, 10 deletions

diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index fbfec6a18839..2c1ae549edbf 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -418,10 +418,12 @@ static int flow_change(struct net *net, struct sk_buff *in_skb,
 			return -EOPNOTSUPP;
 	}
 
-	tcf_exts_init(&e, TCA_FLOW_ACT, TCA_FLOW_POLICE);
+	err = tcf_exts_init(&e, TCA_FLOW_ACT, TCA_FLOW_POLICE);
+	if (err < 0)
+		goto err1;
 	err = tcf_exts_validate(net, tp, tb, tca[TCA_RATE], &e, ovr);
 	if (err < 0)
-		return err;
+		goto err1;
 
 	err = tcf_em_tree_validate(tp, tb[TCA_FLOW_EMATCHES], &t);
 	if (err < 0)
@@ -432,13 +434,15 @@ static int flow_change(struct net *net, struct sk_buff *in_skb,
 	if (!fnew)
 		goto err2;
 
-	tcf_exts_init(&fnew->exts, TCA_FLOW_ACT, TCA_FLOW_POLICE);
+	err = tcf_exts_init(&fnew->exts, TCA_FLOW_ACT, TCA_FLOW_POLICE);
+	if (err < 0)
+		goto err3;
 
 	fold = (struct flow_filter *)*arg;
 	if (fold) {
 		err = -EINVAL;
 		if (fold->handle != handle && handle)
-			goto err2;
+			goto err3;
 
 		/* Copy fold into fnew */
 		fnew->tp = fold->tp;
@@ -458,31 +462,31 @@ static int flow_change(struct net *net, struct sk_buff *in_skb,
 		if (tb[TCA_FLOW_MODE])
 			mode = nla_get_u32(tb[TCA_FLOW_MODE]);
 		if (mode != FLOW_MODE_HASH && nkeys > 1)
-			goto err2;
+			goto err3;
 
 		if (mode == FLOW_MODE_HASH)
 			perturb_period = fold->perturb_period;
 		if (tb[TCA_FLOW_PERTURB]) {
 			if (mode != FLOW_MODE_HASH)
-				goto err2;
+				goto err3;
 			perturb_period = nla_get_u32(tb[TCA_FLOW_PERTURB]) * HZ;
 		}
 	} else {
 		err = -EINVAL;
 		if (!handle)
-			goto err2;
+			goto err3;
 		if (!tb[TCA_FLOW_KEYS])
-			goto err2;
+			goto err3;
 
 		mode = FLOW_MODE_MAP;
 		if (tb[TCA_FLOW_MODE])
 			mode = nla_get_u32(tb[TCA_FLOW_MODE]);
 		if (mode != FLOW_MODE_HASH && nkeys > 1)
-			goto err2;
+			goto err3;
 
 		if (tb[TCA_FLOW_PERTURB]) {
 			if (mode != FLOW_MODE_HASH)
-				goto err2;
+				goto err3;
 			perturb_period = nla_get_u32(tb[TCA_FLOW_PERTURB]) * HZ;
 		}
 
@@ -542,6 +546,8 @@ static int flow_change(struct net *net, struct sk_buff *in_skb,
 		call_rcu(&fold->rcu, flow_destroy_filter);
 	return 0;
 
+err3:
+	tcf_exts_destroy(&fnew->exts);
 err2:
 	tcf_em_tree_destroy(&t);
 	kfree(fnew);