diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c
index b3ad285e057d..dd78ae5441e9 100644
--- a/net/netfilter/nf_flow_table_offload.c
+++ b/net/netfilter/nf_flow_table_offload.c
@@ -340,7 +340,7 @@ static void flow_offload_port_snat(struct net *net,
 		offset = 0; /* offsetof(struct tcphdr, dest); */
 		break;
 	default:
-		break;
+		return;
 	}
 
 	flow_offload_mangle(entry, flow_offload_l4proto(flow), offset,
@@ -367,7 +367,7 @@ static void flow_offload_port_dnat(struct net *net,
 		offset = 0; /* offsetof(struct tcphdr, dest); */
 		break;
 	default:
-		break;
+		return;
 	}
 
 	flow_offload_mangle(entry, flow_offload_l4proto(flow), offset,