linux-kernel - Re: [PATCH] n_gsm: race between ld close and gsmtty open

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Date:	Thu, 17 Oct 2013 10:14:41 -0700
From:	Greg KH <gregkh@...uxfoundation.org>
To:	channing <chao.bi@...el.com>
Cc:	jslaby@...e.cz, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] n_gsm: race between ld close and gsmtty open

On Thu, Oct 17, 2013 at 11:29:10AM +0800, channing wrote:
> 
> ttyA has ld associated to n_gsm, when ttyA is closing, it triggers
> to release gsmttyB's ld data dlci[B], then race would happen if gsmttyB
> is opening in parallel.
> 
> Here are some of race cases we found recently in test:

Are these still an issue with 3.12-rc4?  Lots of pty rework has gone
into there that should help to resolve some of these problems.

thanks,

greg k-h
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