Re: [PATCH] hwmon: lineage-pem: Add missing terminating entry for pem_[input|fan]_attributes

[Jean Delvare <khali@linux-fr.org>]

On Thu, 14 Mar 2013 06:33:04 -0700, Guenter Roeck wrote:
> On Thu, Mar 14, 2013 at 11:23:54AM +0100, Jean Delvare wrote:
> > Hi Axel,
> > 
> > On Thu, 14 Mar 2013 16:27:18 +0800, Axel Lin wrote:
> > > Signed-off-by: Axel Lin <axel.lin@ingics.com>
> > > ---
> > >  drivers/hwmon/lineage-pem.c |    2 ++
> > >  1 file changed, 2 insertions(+)
> > > 
> > > diff --git a/drivers/hwmon/lineage-pem.c b/drivers/hwmon/lineage-pem.c
> > > index 41df29f..ebbb9f4 100644
> > > --- a/drivers/hwmon/lineage-pem.c
> > > +++ b/drivers/hwmon/lineage-pem.c
> > > @@ -422,6 +422,7 @@ static struct attribute *pem_input_attributes[] = {
> > >  	&sensor_dev_attr_in2_input.dev_attr.attr,
> > >  	&sensor_dev_attr_curr1_input.dev_attr.attr,
> > >  	&sensor_dev_attr_power1_input.dev_attr.attr,
> > > +	NULL
> > >  };
> > >  
> > >  static const struct attribute_group pem_input_group = {
> > > @@ -432,6 +433,7 @@ static struct attribute *pem_fan_attributes[] = {
> > >  	&sensor_dev_attr_fan1_input.dev_attr.attr,
> > >  	&sensor_dev_attr_fan2_input.dev_attr.attr,
> > >  	&sensor_dev_attr_fan3_input.dev_attr.attr,
> > > +	NULL
> > >  };
> > >  
> > >  static const struct attribute_group pem_fan_group = {
> > 
> > Good catch.
> > 
> > Acked-by: Jean Delvare <khali@linux-fr.org>
> > 
> > I'll let Guenter pick the fix as this is his driver. This should go to
> > stable too.
>
> Will do. Just wonder why this never blew up in my face, as we use that driver
> in my previous company :).

I've seen it before. I suspect we are saved by the fact that the first
member of struct attribute_group is const char *name, which is almost
never set in the hwmon drivers.

-- 
Jean Delvare