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authorLars-Peter Clausen <lars@metafoo.de>2014-11-04 18:03:15 +0100
committerJonathan Cameron <jic23@kernel.org>2014-11-05 18:33:47 +0000
commit79fa64eb2ee8ccb4bcad7f54caa2699730b10b22 (patch)
tree4d8d51a9e988ffc01ba1156928d15d05ab9c8458
parente10554738cab4224e097c2f9d975ea781a4fcde4 (diff)
downloadlinux-79fa64eb2ee8ccb4bcad7f54caa2699730b10b22.tar.bz2
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: 550268ca1111 ("staging:iio: scrap scan_count and ensure all drivers use active_scan_mask") Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: <stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
-rw-r--r--drivers/staging/iio/meter/ade7758_ring.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
index 628e902dd815..6e9006490742 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,