Re: [PATCH 3/3] Bluetooth: Fix not removing hci_conn for failed LE connection

[Gustavo Padovan <gustavo@padovan.org>]

Hi Andrzej,

* Andrzej Kaczmarek <andrzej.kaczmarek@tieto.com> [2012-05-30 15:39:23 +0200]:

> This patch changes way LE Connection Complete event with error status are
> handled. BDADDR returned in such event packet do not need to be valid and
> should not be used to search for existing hci_conn. Instead, any hci_conn
> with BT_CONNECT state should be matched since there can be only one
> pending LE outgoing connection at any time.
> 
> If not handled properly, appriopriate hci_conn will not be removed and
> subsequent connection to given peer will try to reuse it without making
> actual connection attempt.
> 
> 2012-05-07 11:21:39.133378 < HCI Command: LE Create Connection (0x08|0x000d) plen 25
>     bdaddr 00:22:D0:10:13:EE type 1
> 2012-05-07 11:21:39.138774 > HCI Event: Command Status (0x0f) plen 4
>     LE Create Connection (0x08|0x000d) status 0x00 ncmd 1
> 2012-05-07 11:21:44.752854 < HCI Command: LE Create Connection Cancel (0x08|0x000e) plen 0
> 2012-05-07 11:21:44.759475 > HCI Event: Command Complete (0x0e) plen 4
>     LE Create Connection Cancel (0x08|0x000e) ncmd 1
> 2012-05-07 11:21:44.764479 > HCI Event: LE Meta Event (0x3e) plen 19
>     LE Connection Complete
>       status 0x02 handle 0, role master
>       bdaddr 00:00:00:00:00:00 (Public)
> 
> [14898.739425] [6603] hci_connect: hci0 dst 00:22:D0:10:13:EE
> [14898.739429] [6603] hci_conn_add: hci0 dst 00:22:D0:10:13:EE
> [14898.739434] [6603] hci_conn_init_sysfs: conn ffff880079f03000
> [14898.739440] [6603] hci_send_cmd: hci0 opcode 0x200d plen 25
> [14898.739443] [6603] hci_send_cmd: skb len 28
> [14898.739487] [6603] hci_chan_create: hci0 conn ffff880079f03000
> ...
> [14938.860231] [55] hci_send_cmd: hci0 opcode 0x200e plen 0
> ...
> [14938.876427] [55] hci_le_conn_complete_evt: hci0 status 2
> [14938.876433] [55] hci_conn_add: hci0 dst 00:00:00:00:00:00
> [14938.876439] [55] hci_conn_init_sysfs: conn ffff88007aeff800
> [14938.876454] [55] hci_send_to_control: len 14
> [14938.876470] [55] l2cap_connect_cfm: hcon ffff88007aeff800 bdaddr 00:00:00:00:00:00 status 2
> [14938.876474] [55] hci_conn_del: hci0 conn ffff88007aeff800 handle 0
> 
> Signed-off-by: Andrzej Kaczmarek <andrzej.kaczmarek@tieto.com>
> Acked-by: Andre Guedes <andre.guedes@openbossa.org>
> ---
>  net/bluetooth/hci_event.c |   22 +++++++++++++---------
>  1 file changed, 13 insertions(+), 9 deletions(-)

Applied to bluetooth-next. thanks.

	Gustavo