Bluetooth: Remove unneeded elements from size calculation

hlen - L2CAP_HDR_SIZE = 0, so we don't need to add them in the
calculation.

Signed-off-by: Gustavo Padovan <gustavo@padovan.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

net/bluetooth/l2cap_core.c

@@ -1909,7 +1909,7 @@ static struct sk_buff *l2cap_create_basic_pdu(struct l2cap_chan *chan,
 	/* Create L2CAP header */
 	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
 	lh->cid = cpu_to_le16(chan->dcid);
-	lh->len = cpu_to_le16(len + (hlen - L2CAP_HDR_SIZE));
+	lh->len = cpu_to_le16(len);
 
 	err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb);
 	if (unlikely(err < 0)) {