linux-kernel - Re: [PATCH 0/4] serdev: fix broken lifetime assumptions

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Message-ID: <20170517103958.GU3657@localhost>
Date:   Wed, 17 May 2017 12:39:58 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Rob Herring <robh@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Jiri Slaby <jslaby@...e.com>, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org, Johan Hovold <johan@...nel.org>
Subject: Re: [PATCH 0/4] serdev: fix broken lifetime assumptions

On Tue, Apr 11, 2017 at 07:07:27PM +0200, Johan Hovold wrote:
> This series fixes a number of issues with the new serdev code, which was
> based on incorrect tty-port lifetime assumptions.
> 
> The first patch disables serdev support by reverting the patch which
> hooked into the tty layer in a broken way that leads to crashes and
> leaks when deregistering devices. This one should probably go into 4.11.
> 
> The second patch fixes a specific bug in the tty-port client
> registration code, while the third patch adds a new interface for
> registering serdev devices. The final patch ultimately enables serdev
> again for the serial drivers.
> 
> More details can be found in the individual commit messages.
> 
> Johan
> 
> 
> Johan Hovold (4):
>   Revert "tty_port: register tty ports with serdev bus"
>   serdev: fix tty-port client deregistration
>   tty/serdev: add serdev registration interface
>   serial: enable serdev support

Rob, did you have any further comments to this series?

Greg, I think these should go into 4.12-rc2, and the first patch should
probably also have a stable tag now as serdev resource-management is
clearly broken in 4.11.

Johan