linux-kernel - Re: [PATCH] usb-serial: Fix usb serial console open/close regression

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Date:	Mon, 8 Mar 2010 17:40:27 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Jason Wessel <jason.wessel@...driver.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Alan Cox <alan@...ux.intel.com>,
	Oliver Neukum <oliver@...kum.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] usb-serial: Fix usb serial console open/close
 regression

> This is a little unfortunate.  It would be better to prevent
> tty_port_shutdown() from clearing ASYNCB_INITIALIZED in the first
> place.  The problem is that the tty core doesn't know when the port is
> being used as a console.  There ought to be a way to tell it.

Agreed - there should probably be a port.console flag to push it up into
the tty_port logic as well.

Alan
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