Re: [RFC 1/3] Bluetooth: check for already existent channel before create new one

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Hi Gustavo,

On Thu, May 24, 2012 at 03:02:52AM -0300, Gustavo Padovan wrote:
> From: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
> 
> Move this check to before the channel time creation simplifies the code
> and avoid memory allocation if the channel already exist.
> 
> Signed-off-by: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxxxx>
> ---
>  net/bluetooth/l2cap_core.c |   13 ++++---------
>  1 file changed, 4 insertions(+), 9 deletions(-)
> 
> diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
> index 22ba699..c9de4f5 100644
> --- a/net/bluetooth/l2cap_core.c
> +++ b/net/bluetooth/l2cap_core.c
> @@ -3340,21 +3340,16 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd
>  
>  	result = L2CAP_CR_NO_MEM;
>  
> +	/* Check if we already have channel with that dcid */
> +	if (__l2cap_get_chan_by_dcid(conn, scid))
> +		goto response;
> +
>  	chan = pchan->ops->new_connection(pchan->data);
>  	if (!chan)
>  		goto response;
>  
>  	sk = chan->sk;
>  
> -	/* Check if we already have channel with that dcid */
> -	if (__l2cap_get_chan_by_dcid(conn, scid)) {
> -		if (chan->ops->finalize)
> -			chan->ops->finalize(chan->data, 0);

What is finalize? Is this the first patch? We do not have finalize yet.

Best regards 
Andrei Emeltchenko 

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