Re: [PATCH] spi/spi-fsl-spi: reference correct pdata in fsl_spi_cs_control

[Grant Likely <grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>]

On Sun, 13 May 2012 11:22:25 +0200, Joakim Tjernlund <joakim.tjernlund-SNLAxHN9vbcOP4wsBPIw7w@public.gmane.org> wrote:
> "Herton R. Krzesinski" <herton.krzesinski-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org> wrote on 2012/05/12 00:29:50:
> >
> > From: Herton Ronaldo Krzesinski <herton.krzesinski-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
> >
> > Commit 178db7d3, "spi: Fix device unregistration when unregistering
> > the bus master", changed spi device initialization of dev.parent pointer
> > to be the master's device pointer instead of his parent.
> >
> > This introduced a bug in spi-fsl-spi, since its usage of spi device
> > pointer was not updated accordingly. This was later fixed by commit
> > 5039a86, "spi/mpc83xx: fix NULL pdata dereference bug", but it missed
> > another spot on fsl_spi_cs_control function where we also need to update
> > usage of spi device pointer. This change address that.
> >
> > Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> > Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
> > ---
> >  drivers/spi/spi-fsl-spi.c |    2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c
> > index 5f748c0..6a62934 100644
> > --- a/drivers/spi/spi-fsl-spi.c
> > +++ b/drivers/spi/spi-fsl-spi.c
> > @@ -933,7 +933,7 @@ err:
> >
> >  static void fsl_spi_cs_control(struct spi_device *spi, bool on)
> >  {
> > -   struct device *dev = spi->dev.parent;
> > +   struct device *dev = spi->dev.parent->parent;
> >     struct mpc8xxx_spi_probe_info *pinfo = to_of_pinfo(dev->platform_data);
> >     u16 cs = spi->chip_select;
> >     int gpio = pinfo->gpios[cs];
> 
> So it seems
> Acked-by: Joakim Tjernlund <Joakim.Tjernlund-SNLAxHN9vbcOP4wsBPIw7w@public.gmane.org>
> 

Applied, thanks.

g.


-- 
Grant Likely, B.Sc, P.Eng.
Secret Lab Technologies, Ltd.

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