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From: Duncan Sands <baldrick@free.fr>
To: Oliver Neukum <oliver@neukum.org>, Alan Stern <stern@rowland.harvard.edu>
Subject: Re: [linux-usb-devel] Re: [OOPS,  usbcore, releaseintf] 2.6.0-test10-mm1
Date: Wed, 10 Dec 2003 17:49:17 +0100
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Cc: David Brownell <david-b@pacbell.net>, Vince <fuzzy77@free.fr>,
       "Randy.Dunlap" <rddunlap@osdl.org>, <mfedyk@matchmail.com>,
       <zwane@holomorphy.com>, <linux-kernel@vger.kernel.org>,
       USB development list <linux-usb-devel@lists.sourceforge.net>
References: <Pine.LNX.4.44L0.0312081754480.2034-100000@ida.rowland.org> <200312101422.40088.baldrick@free.fr> <200312101720.22731.oliver@neukum.org>
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On Wednesday 10 December 2003 17:20, Oliver Neukum wrote:
> Am Mittwoch, 10. Dezember 2003 14:22 schrieb Duncan Sands:
> > > That leads to the question of how to assure that the device doesn't go
> > > away before usb_set_configuration is called.  Perhaps
> > > usb_set_configuration and usb_unbind_interface should be changed to
> > > require the caller to hold the serialize lock.
> >
> > How about
> >
> > __usb_set_configuration - lockless version
> > usb_set_configuration - locked version
>
> Partially done.
> That's what the _physical version of usb_reset_device() is about.

Unfortunately, usb_physical_reset_device calls usb_set_configuration
which takes dev->serialize.

Duncan.