diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 789ce59f04c4971363360e5f3a7bc504b8291e3b..4b55ab2bedf5b1c7f09914ba3e37d936750f0e8f 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -552,7 +552,8 @@ static int prb_calc_retire_blk_tmo(struct packet_sock *po,
 			msec = 1;
 			div = ecmd.base.speed / 1000;
 		}
-	}
+	} else
+		return DEFAULT_PRB_RETIRE_TOV;
 
 	mbits = (blk_size_in_bytes * 8) / (1024 * 1024);