Re: [PATCH] USB-MUSB: fix crash due to uninitialized pointer

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On Mon, Feb 09, 2009 at 03:03:11PM +0100, ext Giuseppe GORGOGLIONE wrote:
> 
> 
> 
> > From: Felipe Balbi [mailto:felipe.balbi@xxxxxxxxx]
> > Sent: Monday, February 09, 2009 1:22 PM
> > To: ext Giuseppe GORGOGLIONE
> > Cc: Balbi Felipe (Nokia-D/Helsinki); linux-usb@xxxxxxxxxxxxxxx
> > Subject: Re: [PATCH] USB-MUSB: fix crash due to uninitialized pointer
> >
> > On Mon, Feb 09, 2009 at 11:59:26AM +0100, ext Giuseppe GORGOGLIONE wrote:
> > >
> > >
> > > From: Giuseppe GORGOGLIONE
> > >
> > > An uninitialized pointer is used to reference MUSB registers when the
> > > device is setup to use static FIFOs and to configure endpoints from
> > > hardware, causing a kernel crash. This bug was trivial but probably
> > > never catched before because modern MUSB devices are designed to have
> > > dynamic FIFOs and to configure endpoints from tables.
> > >
> > > Tested on STMicroelectronics Cartesio STA2062, an ARM based SoC which
> > > is integrating two Mentor Inventra devices, one with static FIFOs and
> > > static endpoint configuration from HW, and one with dynamic FIFOs and
> > > dynamic endpoint configuration from tables.
> > > Only the first device was hitting the bug.
> > > Reference kernel version 2.6.28.4
> > >
> > > Signed-off-by: Giuseppe GORGOGLIONE <giuseppe.gorgoglione@xxxxxx>
> >
> > This part is can see that won't apply on top of current musb's patches,
> Blackfin's patches moved this to a > > static inline musb_read_fifosize().
> >
> > Update your kernel tree and send this patch again, please ;-)
> 
> I'll be glad, as soon as I get reference to the latest MUSB tree.   :-)

it's in current mainline tree. linux-2.6.git from linus.

-- 
balbi
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