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@xxxxxxxxxx>
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,
>
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