2013-07-11 19:01:50

by Gianluca Anzolin

[permalink] [raw]
Subject: [PATCH v2] Fix refcounting issues in rfcomm/tty.c

Hello,

This is a second version of the previous patches I sent to linux-bluetooth
list. I grouped the two patches together since they are related.

I fixed some bugs in my previous attempt:

1. skb_queue_purge is now called in the cleanup method to avoid a circular
dependency between the dev struct and dlc struct.

2. refcomm_dev_release should check REFCOMM_TTY_RELEASED instead of
REFCOMM_RELEASE_ONHUP.

I checked with both bluez4 and bluez5 and everything works as expected.

The patch still depends on the tty_port patch I already sent to linux-kernel
and to its maintainer but I haven't received any reply yet.

Signed-off-by: Gianluca Anzolin <[email protected]>


Attachments:
(No filename) (680.00 B)
rfcomm-tty-patch-v2.patch (17.23 kB)
Download all attachments

2013-07-12 15:06:31

by Peter Hurley

[permalink] [raw]
Subject: Re: [PATCH v2] Fix refcounting issues in rfcomm/tty.c

On 07/12/2013 06:18 AM, Gustavo Padovan wrote:
> Hi Gianluca,
>
> * Gianluca Anzolin <[email protected]> [2013-07-11 21:01:50 +0200]:
>
>> Hello,
>>
>> This is a second version of the previous patches I sent to linux-bluetooth
>> list. I grouped the two patches together since they are related.
>>
>> I fixed some bugs in my previous attempt:
>
> If you are fixing different bugs I want one patch for each fix.
>
>> 1. skb_queue_purge is now called in the cleanup method to avoid a circular
>> dependency between the dev struct and dlc struct.
>>
>> 2. refcomm_dev_release should check REFCOMM_TTY_RELEASED instead of
>> REFCOMM_RELEASE_ONHUP.
>>
>> I checked with both bluez4 and bluez5 and everything works as expected.
>
> Please send a proper inline patch with git-format-patch and git-send-email. Also
> get rid of all BT_DBG changes you've made, read the dynamic debug doc to learn
> how to print the function name when debugging. And if you are moving functions around
> please do this in a separated patch.

Please cc me on this series when these changes are split up and
I'll be happy to review it.

Regards,
Peter Hurley

2013-07-12 10:18:52

by Gustavo Padovan

[permalink] [raw]
Subject: Re: [PATCH v2] Fix refcounting issues in rfcomm/tty.c

Hi Gianluca,

* Gianluca Anzolin <[email protected]> [2013-07-11 21:01:50 +0200]:

> Hello,
>
> This is a second version of the previous patches I sent to linux-bluetooth
> list. I grouped the two patches together since they are related.
>
> I fixed some bugs in my previous attempt:

If you are fixing different bugs I want one patch for each fix.

> 1. skb_queue_purge is now called in the cleanup method to avoid a circular
> dependency between the dev struct and dlc struct.
>
> 2. refcomm_dev_release should check REFCOMM_TTY_RELEASED instead of
> REFCOMM_RELEASE_ONHUP.
>
> I checked with both bluez4 and bluez5 and everything works as expected.

Please send a proper inline patch with git-format-patch and git-send-email. Also
get rid of all BT_DBG changes you've made, read the dynamic debug doc to learn
how to print the function name when debugging. And if you are moving functions around
please do this in a separated patch.

Gustavo