linux-kernel - Re: [Bisected] [Bug #13821] Replugging USB serial converter uses new device node

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Date:	Tue, 28 Jul 2009 23:07:52 +0200
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Ferenc Wagner <wferi@...f.hu>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Alan Stern <stern@...land.harvard.edu>,
	"Carlos R. Mafra" <crmafra2@...il.com>, Greg KH <greg@...ah.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Kernel Testers List <kernel-testers@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>,
	Kay Sievers <kay.sievers@...y.org>
Subject: Re: [Bisected] [Bug #13821] Replugging USB serial converter uses new device node

On Tuesday 28 July 2009, Ferenc Wagner wrote:
> Alan Cox <alan@...rguk.ukuu.org.uk> writes:
> 
> > commit 3f40612e940971ecec29d5375cdcc9f9c9a9f46e
> > Author: Alan Cox <alan@...ux.intel.com>
> > Date:   Tue Jul 28 00:23:39 2009 +0100
> >
> >     tty: USB lock/refcounting fixes
> >     
> >     This fixes
> >     - locking bug that was hidden by ecc2e05e739c30870c8e4f252b63a0c4041f2724
> >     - Regression #13821
> >     - Spurious warning when closing and blocking for data write out
> >     
> >     With these changes my PL2303 always ends up as ttyUSB0 when it should and
> >     the module refcounts stay correct.
> >     
> >     I'll do a more wholesale split & tidy of _open in the next release or two
> >     as we get a standard tty_port_open and port->ops->init port->ops->shutdown
> >     call backs.
> >     
> >     Signed-off-by: Alan Cox <alan@...ux.intel.com>
> 
> I confirm that current git (containing the above patch) has regression
> #13821 fixed, as well as the open bug discovered by Alan Stern.

Thanks, closed.

Rafael
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