Bluetooth: Add HCI CMSG details only to raw sockets

The HCI CMSG specific data is for raw sockets only. So only add them to
actual raw sockets.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>

net/bluetooth/hci_sock.c

@@ -488,7 +488,11 @@ static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	skb_reset_transport_header(skb);
 	err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
 
-	hci_sock_cmsg(sk, msg, skb);
+	switch (hci_pi(sk)->channel) {
+	case HCI_CHANNEL_RAW:
+		hci_sock_cmsg(sk, msg, skb);
+		break;
+	}
 
 	skb_free_datagram(sk, skb);