staging:iio:ade7758: Fix check if channels are enabled in prenable

We should check if a channel is enabled, not if no channels are enabled. Fixes: 550268c ("staging:iio: scrap scan_count and ensure all drivers use active_scan_mask") Signed-off-by: Lars-Peter Clausen <[email protected]> Cc: <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]>
nemunaire · Nov 5, 2014 · 79fa64e · 79fa64e
1 parent e105547
commit 79fa64e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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,