Bluetooth: Fix memory leak in L2CAP

Move skb_clone after error confition check so it is not going
potentially out of the scope.

Signed-off-by: Andrei Emeltchenko <[email protected]>
Acked-by: Gustavo F. Padovan <[email protected]>
Signed-off-by: Marcel Holtmann <[email protected]>

diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 8acc19ed9c4dcc3dcb7d0b1282b2b0acb6963aae..400efa26ddbab7474fdfc1d1992eb204b4104f20 100644 (file)
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -1368,7 +1368,6 @@ static int l2cap_ertm_send(struct sock *sk)
 
        while ((skb = sk->sk_send_head) && (!l2cap_tx_window_full(sk)) &&
               !(pi->conn_state & L2CAP_CONN_REMOTE_BUSY)) {
-               tx_skb = skb_clone(skb, GFP_ATOMIC);
 
                if (pi->remote_max_tx &&
                                bt_cb(skb)->retries == pi->remote_max_tx) {
@@ -1376,6 +1375,8 @@ static int l2cap_ertm_send(struct sock *sk)
                        break;
                }
 
+               tx_skb = skb_clone(skb, GFP_ATOMIC);
+
                bt_cb(skb)->retries++;
 
                control = get_unaligned_le16(tx_skb->data + L2CAP_HDR_SIZE);