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

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On Sat, Apr 21, 2012 at 07:09:45AM +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.

thanks,

greg k-h
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