[PATCH 03/16] pinctrl: samsung: Detect and handle unsupported configuration types

[Tomasz Figa]

On Wednesday 10 of October 2012 09:37:42 Linus Walleij wrote:
> On Mon, Oct 8, 2012 at 10:39 AM, Tomasz Figa <t.figa at samsung.com> wrote:
> > This patch modifies the pinctrl-samsung driver to detect when width of
> > a
> > bit field is set to zero (which means that such configuraton type is
> > not
> > supported) and return an error instead of trying to modify an
> > inexistent
> > register.
> > 
> > Signed-off-by: Tomasz Figa <t.figa at samsung.com>
> > ---
> > 
> >  drivers/pinctrl/pinctrl-samsung.c | 3 +++
> >  1 file changed, 3 insertions(+)
> > 
> > diff --git a/drivers/pinctrl/pinctrl-samsung.c
> > b/drivers/pinctrl/pinctrl-samsung.c index dd108a9..c660fa5 100644
> > --- a/drivers/pinctrl/pinctrl-samsung.c
> > +++ b/drivers/pinctrl/pinctrl-samsung.c
> > @@ -391,6 +391,9 @@ static int samsung_pinconf_rw(struct pinctrl_dev
> > *pctldev, unsigned int pin,> 
> >                 return -EINVAL;
> >         
> >         }
> > 
> > +       if (!width)
> > +               return -EINVAL;
> > +
> 
> Can this patch be applied in isolation from the others?

Yes, I don't see any problem here.

Best regards,
-- 
Tomasz Figa
Samsung Poland R&D Center