Bluetooth: Allow unsegmented SDU retries on sock_queue_rcv_skb failure

In L2CAP_SDU_UNSEGMENTED case, if sock_queue_rcv_skb returns error,
l2cap_ertm_reassembly_sdu should not return 0 so as to insert the
skb into BUSY_QUEUE for later retries.

Signed-off-by: Ruiyi Zhang <Ruiyi.Zhang@Atheros.com>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index e64a1c2..6b59005 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -2928,11 +2928,7 @@
 		if (chan->conn_state & L2CAP_CONN_SAR_SDU)
 			goto drop;
 
-		err = sock_queue_rcv_skb(chan->sk, skb);
-		if (!err)
-			return err;
-
-		break;
+		return sock_queue_rcv_skb(chan->sk, skb);
 
 	case L2CAP_SDU_START:
 		if (chan->conn_state & L2CAP_CONN_SAR_SDU)