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Commit f5ee7b80 authored by Jonathan Cameron's avatar Jonathan Cameron Committed by Greg Kroah-Hartman
Browse files

staging:iio:impedance-analyser make use of iio_sw_buffer_preenable 



This avoids some code duplication by using the generic form
in a non performance critical place.

Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
Acked-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c562ccbf

drivers/staging/iio/impedance-analyzer/ad5933.c

+3 −8
Original line number Diff line number Diff line
@@ -569,19 +569,14 @@ static const struct iio_info ad5933_info = { 
static int ad5933_ring_preenable(struct iio_dev *indio_dev)

{

	struct ad5933_state *st = iio_priv(indio_dev);

	size_t d_size;

	int ret;



	if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))

		return -EINVAL;



	d_size = bitmap_weight(indio_dev->active_scan_mask,

			       indio_dev->masklength) *

		 ad5933_channels[1].scan_type.storagebits / 8;



	if (indio_dev->buffer->access->set_bytes_per_datum)

		indio_dev->buffer->access->

			set_bytes_per_datum(indio_dev->buffer, d_size);

	ret = iio_sw_buffer_preenable(indio_dev);

	if (ret < 0)

		return ret;



	ret = ad5933_reset(st);

	if (ret < 0)