diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index 865ecef68196900157b29c59b6bd57aff53e9e07..c7b6010b2c095f16e38db1633c0f3e0fc3ea0fbd 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -500,7 +500,7 @@ static int __parse_flow_nlattrs(const struct nlattr *attr,
 			return -EINVAL;
 		}
 
-		if (!nz || !is_all_zero(nla_data(nla), expected_len)) {
+		if (!nz || !is_all_zero(nla_data(nla), nla_len(nla))) {
 			attrs |= 1 << type;
 			a[type] = nla;
 		}