Re: Null pointer deref with stable kernel 3.0.y - powerpc - fsl-mph-dr

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On Tue, Apr 24, 2012 at 11:58:03PM +0000, Chen Peter-B29397 wrote:
> > > > > >
> > > > > I am sorry to make you trouble. According to your words, this fix
> > > > should not
> > > > > go 3.x stable tree, as it relates some code which checked in after
> > > > 3.0.27.
> > > >
> > > > So, should I drop it from the 3.0-stable tree then?
> > > >
> > > I am not sure if only 3.0-stable needs to drop.
> > > This commit (d39514c) needs to added after below commit:
> > >
> > > commit 314b02f503c2c219fde0fcf6f086fda415f8a847
> > > Author: Kumar Gala <galak@xxxxxxxxxxxxxxxxxxx>
> > > Date:   Fri Jul 8 00:17:27 2011 -0500
> > >
> > >     powerpc: implement arch_setup_pdev_archdata
> > >
> > >     We have a long standing issues with platform devices not have a
> > valid
> > >     dma_mask pointer.  This hasn't been an issue to date as no platform
> > >     device has tried to set its dma_mask value to a non-default value.
> > >
> > >     Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
> > >     Signed-off-by: Kumar Gala <galak@xxxxxxxxxxxxxxxxxxx>
> > 
> > 
> > I still do not understand, sorry.
> > 
> > Please tell me exactly what patches need to be applied to the 3.0-stable
> > tree to fix this, OR, what patch I should revert.
> > 
> Sorry to make your trouble.
> Please revert below patch for 3.0 stable tree
> 
> commit e90fc3cb087ce5c5f81e814358222cd6d197b5db
> Author: Peter Chen <peter.chen@xxxxxxxxxxxxx>
> Date:   Thu Feb 16 09:41:52 2012 +0800

Thanks for the clarification, it is now reverted.

greg k-h
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