linux-kernel - Re: [PATCH] char: prevent opening unavailable ports in moxa.c

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Message-ID: <20090610165822.5b947273@lxorguk.ukuu.org.uk>
Date:	Wed, 10 Jun 2009 16:58:22 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Dirk Eibach <eibach@...ys.de>
Cc:	linux-kernel@...r.kernel.org, jirislaby@...il.com,
	Dirk Eibach <eibach@...ys.de>
Subject: Re: [PATCH] char: prevent opening unavailable ports in moxa.c

On Tue,  9 Jun 2009 08:57:36 +0200
Dirk Eibach <eibach@...ys.de> wrote:

> In moxa.c there are 32 minor numbers reserved for each device. The
> number of ports actually available per device is stored in
> moxa_board_conf->numPorts. This number is not considered in moxa_open().
> Opening a port that is not available results in a kernel oops.
> This patch adds a test to moxa_open() that prevents opening unavailable
> ports.
> 
> Signed-off-by: Dirk Eibach <eibach@...ys.de>


Applied - thanks

Alan
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