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authorLars-Peter Clausen <lars@metafoo.de>2014-11-04 18:03:15 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-11-14 08:47:58 -0800
commit4fdbedf5569be1dbd53cb6d87743e155b1eb032a (patch)
treed2c211a5b32cf1fd400d6e7778d0c5b38f85431a
parent035bc79c51a0c5cfca17f1692f9ad9de0d3ae829 (diff)
staging:iio:ade7758: Fix check if channels are enabled in prenable
commit 79fa64eb2ee8ccb4bcad7f54caa2699730b10b22 upstream. 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> Signed-off-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 25e1b45b6c40..6a0ef97e9146 100644
--- a/drivers/staging/iio/meter/ade7758_ring.c
+++ b/drivers/staging/iio/meter/ade7758_ring.c
@@ -92,7 +92,7 @@ static int ade7758_ring_preenable(struct iio_dev *indio_dev)
unsigned channel;
int ret;
- if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
+ if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
return -EINVAL;
ret = iio_sw_buffer_preenable(indio_dev);