linux-kernel - Re: [024/115] USB: prevent buggy hubs from crashing the USB stack

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Message-ID: <Pine.LNX.4.44L0.1102241255100.2084-100000@iolanthe.rowland.org>
Date:	Thu, 24 Feb 2011 12:57:20 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Felipe Balbi <balbi@...com>
cc:	Greg KH <gregkh@...e.de>, Alexander Holler <holler@...oftware.de>,
	Michael Jones <michael.jones@...rix-vision.de>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	<stable@...nel.org>, <stable-review@...nel.org>,
	<torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	USB list <linux-usb@...r.kernel.org>,
	<linux-omap@...r.kernel.org>
Subject: Re: [024/115] USB: prevent buggy hubs from crashing the USB stack

On Thu, 24 Feb 2011, Felipe Balbi wrote:

> On Thu, Feb 24, 2011 at 09:18:14AM -0800, Greg KH wrote:
> > On Thu, Feb 24, 2011 at 11:16:38AM +0200, Felipe Balbi wrote:
> > > Hi,
> > > 
> > > On Thu, Feb 24, 2011 at 10:15:23AM +0100, Alexander Holler wrote:
> > > > >On Wed, Feb 23, 2011 at 10:26:20AM -0500, Alan Stern wrote:
> > > > >>In both cases, it appears that the problem is caused by the fact that
> > > > >>the musb host-controller driver doesn't set the hcd->has_tt flag.
> > > > >>
> > > > >>Felipe, you should know where it belongs.  It should be easy enough to
> > > > >>add.
> > > > >
> > > > >Sure Alan, it's attached to this mail. Compile tested only though.
> > > > >Michael, would you care to give your tested-by ?
> > > > 
> > > > I can do, I'm using exactly the same patch since yesterday. ;)
> > > > 
> > > > Tested-by: Alexander Holler <holler@...oftware.de>
> > > 
> > > Thanks a lot Alex, Greg, can you still take this to -rc ? Do you need a
> > > pull request or you can take this one patch ?
> > 
> > Wait, where does this need to go?  For the final 2.6.38 release and then
> > also for .37-stable?
> > 
> > Or just .37-stable?
> > 
> > confused.
> > 
> > And no, I don't need a pull request, I can handle one patch through
> > email :)
> 
> final .38 and .37-stable :-) Thanks Greg :-)

It's important that this patch appear in .37-stable at the same time as
the $SUBJECT patch.  If that means delaying $SUBJECT for one release, 
so be it -- it was not a very important change.

Alan Stern

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