RE: [PATCH obexd] Fix crash introduced by f5279bfcedd669bc5d4e88cc1c59807c92226dfb

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Hi, Luiz

-----Original Message-----
From: Luiz Augusto von Dentz [mailto:luiz.dentz@xxxxxxxxx] 
Sent: 2011年6月21日 17:48
To: Li, Nami
Cc: linux-bluetooth@xxxxxxxxxxxxxxx
Subject: Re: [PATCH obexd] Fix crash introduced by f5279bfcedd669bc5d4e88cc1c59807c92226dfb

Hi Nami,

2011/6/21 Li, Nami <nami@xxxxxxxxxxxxxxxx>:
> Hi,
>
> -----Original Message-----
> From: linux-bluetooth-owner@xxxxxxxxxxxxxxx 
> [mailto:linux-bluetooth-owner@xxxxxxxxxxxxxxx] On Behalf Of Luiz 
> Augusto von Dentz
> Sent: 2011年6月21日 16:38
> To: linux-bluetooth@xxxxxxxxxxxxxxx
> Subject: [PATCH obexd] Fix crash introduced by 
> f5279bfcedd669bc5d4e88cc1c59807c92226dfb
>
> From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
>
> The callback function actually needs the bluetooth_service structure not obex_service_driver.
> ---
>  plugins/bluetooth.c |   11 +++++++++--
>  1 files changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/plugins/bluetooth.c b/plugins/bluetooth.c index 
> fe508f4..1037b24 100644
> --- a/plugins/bluetooth.c
> +++ b/plugins/bluetooth.c
> @@ -459,10 +459,11 @@ static int request_service_authorization(struct 
> bluetooth_service *service,
>
>  static void confirm_event(GIOChannel *io, void *user_data)  {
> -       struct bluetooth_service *service = user_data;
> +       struct bluetooth_service *service;
>        GError *err = NULL;
>        char address[18];
>        uint8_t channel;
> +       struct obex_service_driver *driver = user_data;
>
>        bt_io_get(io, BT_IO_RFCOMM, &err,
>                        BT_IO_OPT_DEST, address, @@ -477,7 +478,13 @@ 
> static void confirm_event(GIOChannel *io, void *user_data)
>        info("bluetooth: New connection from: %s, channel %u", address,
>                        channel);
>
> -       if (service->driver->service != OBEX_OPP) {
> +       service = find_service(driver, 0);
>
> Will it be better to write as "service = find_service(driver, channel);" ?
> Or if you choose not to use channel, I think you could omit channel 
> variable and omit bt_io_get(BT_IO_OPT_CHANNEL, &channel);

>I only leave the channel there for logging, as for the find_service it is really useless to use the channel if we are going to support L2CAP in future, so in theory this should work regardless of the transport.


Yeah, it`s better when support L2CAP.  If the channel is only use for logging, can we delete it? 
There are only two functions calling find_service, one in your commit , another in register_record function:
	service = find_service(driver, 0);
Seems the channel parameter is useless.
And considering OBEX over L2CAP, should we modify find_service to
   static struct bluetooth_service *find_service(struct obex_service_driver *driver)
just delete uint8_t channel parameter.
If ok, you or me can upload a patch for this issue.

Nami

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