Re: [PATCH 2/3] staging:iio:ade7758: Fix check if channels are enabled in prenable

[Jonathan Cameron <jic23@kernel.org>]

On 04/11/14 17:03, Lars-Peter Clausen wrote:
> We should check if a channel is enabled, not if no channels are enabled.
> 
> Fixes: 550268ca1111 ("staging:iio: scrap scan_count and ensure all drivers use active_scan_mask")
> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Applied to the fixes-togreg branch of iio.git and marked for stable.

Thanks,
> ---
>  drivers/staging/iio/meter/ade7758_ring.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
> index 628e902..6e90064 100644
> --- a/drivers/staging/iio/meter/ade7758_ring.c
> +++ b/drivers/staging/iio/meter/ade7758_ring.c
> @@ -87,7 +87,7 @@ static int ade7758_ring_preenable(struct iio_dev *indio_dev)
>  {
>  	unsigned channel;
>  
> -	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
> +	if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
>  		return -EINVAL;
>  
>  	channel = find_first_bit(indio_dev->active_scan_mask,
>