linux-kernel - Re: 2.6.31-rc5 regression: Oops when USB Serial disconnected while in use

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Date:	Wed, 26 Aug 2009 22:19:51 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Bruno Prémont <bonbons@...ux-vserver.org>
cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, Greg KH <greg@...ah.com>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: 2.6.31-rc5 regression: Oops when USB Serial disconnected while
 in use

On Wed, 26 Aug 2009, Bruno [UTF-8] PrÃ©mont wrote:

> Change applied to usb-serial.c, serial_instal().
> Tried it out with both pl2302 and ftdi-sio, no visible issues!
> 
> Actions I tried: connect, disconnect (with minicom running as well as
> without), start/stop minicom multiple times.
> 
> I've seen nothing unexpected or bad in kernel log (just a note that
> some sending failed while typing into minicom and pulling the USB
> plug: pl2303_write_bulk_callback - failed resubmitting write urb, error -19)

Great!  Okay, I'll break this up into a bunch of logically separate 
patches and submit them for 2.6.32.  When they have gotten sufficient 
testing, they can be back-ported into 2.6.31.stable.

Alan Stern

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