linux-kernel - Re: [PATCH 1/2] Char: isicom, prolong tty reference holding

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Date:	Mon, 16 Mar 2009 11:56:18 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
CC:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] Char: isicom, prolong tty reference holding

On 16.3.2009 11:50, Alan Cox wrote:
> On Mon, 16 Mar 2009 11:34:24 +0100
> Jiri Slaby<jirislaby@...il.com>  wrote:
>
>> Hold the tty reference a bit longer in isicom_shutdown_port, because
>> we use it later in the function, so that it won't disappear in the
>> meantime.
>
> NAK - we do have a bug there but I don't think that is it.
>
> The tty_kref_get takes an additional reference so the tty_port_tty_set is
> fine, but we don't then drop the kref we took temporarily. I think we
> need this:

Hmm, but the tty_port_tty_set drops the reference, right?
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