linux-kernel - Re: [PATCH 1/5] tty_port,usb-console: Fix usb serial console open/close regression

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Message-ID: <20100316212337.GB31739@kroah.com>
Date:	Tue, 16 Mar 2010 14:23:37 -0700
From:	Greg KH <greg@...ah.com>
To:	Jason Wessel <jason.wessel@...driver.com>
Cc:	gregkh@...e.de, Alan Stern <stern@...land.harvard.edu>,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	Alan Cox <alan@...ux.intel.com>,
	Oliver Neukum <oliver@...kum.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH 1/5] tty_port,usb-console: Fix usb serial console
	open/close regression

On Tue, Mar 16, 2010 at 04:05:42PM -0500, Jason Wessel wrote:
> Commit e1108a63e10d344284011cccc06328b2cd3e5da3 ("usb_serial: Use the
> shutdown() operation") breaks the ability to use a usb console
> starting in 2.6.33.  This was observed when using
> console=ttyUSB0,115200 as a boot argument with an FTDI device.  The
> error is:
> 
> ftdi_sio ttyUSB0: ftdi_submit_read_urb - failed submitting read urb, error -22
> 
> The handling of the ASYNCB_INITIALIZED changed in 2.6.32 such that in
> tty_port_shutdown() it always clears the flag if it is set.  The fix
> is to add a variable to the tty_port struct to indicate when the tty
> port is a console.

I've already applied this to my trees, right?


thanks,

greg k-h
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