[PATCH 02/11] staging/iio: (iio_hwmon) Add support for sysfs name attribute

[Jonathan Cameron]

On 01/31/2013 09:42 PM, Guenter Roeck wrote:
> The 'name' attribute is mandatory for hwmon devices.
> 
> Signed-off-by: Guenter Roeck <linux at roeck-us.net>
Wow, that one character patch these crossed with manages to effect
this one as well.  Applied with the obvious tiny fix.

Thanks,
> ---
>  drivers/staging/iio/iio_hwmon.c |   12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/staging/iio/iio_hwmon.c b/drivers/staging/iio/iio_hwmon.c
> index 5456272..7f260ea 100644
> --- a/drivers/staging/iio/iio_hwmon.c
> +++ b/drivers/staging/iio/iio_hwmon.c
> @@ -55,6 +55,14 @@ static ssize_t iio_hwmon_read_val(struct device *dev,
>  	return sprintf(buf, "%d\n", result);
>  }
>  
> +static ssize_t show_name(struct device *dev, struct device_attribute *attr,
> +			 char *buf)
> +{
> +	return sprintf(buf, "iio_hwmon\n");
> +}
> +
> +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
> +
>  static int iio_hwmon_probe(struct platform_device *pdev)
>  {
>  	struct device *dev = &pdev->dev;
> @@ -77,7 +85,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
>  		st->num_channels++;
>  
>  	st->attrs = devm_kzalloc(dev,
> -				 sizeof(st->attrs) * (st->num_channels + 1),
> +				 sizeof(st->attrs) * (st->num_channels + 2),
>  				 GFP_KERNEL);
>  	if (st->attrs == NULL) {
>  		ret = -ENOMEM;
> @@ -125,7 +133,7 @@ static int iio_hwmon_probe(struct platform_device *pdev)
>  		a->index = i;
>  		st->attrs[i] = &a->dev_attr.attr;
>  	}
> -
> +	st->attrs[st->num_channels] = &dev_attr_name.attr;
>  	st->attr_group.attrs = st->attrs;
>  	platform_set_drvdata(pdev, st);
>  	ret = sysfs_create_group(&dev->kobj, &st->attr_group);
>