diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index 435a4bdf8f89dbac1cb7eab5351f203b76114c78..691da853bef5cb801d963cae4e9bf7b23a3dddd6 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;
 		}