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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: Jonathan Cameron <jic23@kernel.org> Acked-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -569,19 +569,14 @@ static const struct iio_info ad5933_info = {
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static int ad5933_ring_preenable(struct iio_dev *indio_dev)
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{
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struct ad5933_state *st = iio_priv(indio_dev);
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size_t d_size;
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int ret;
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if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
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return -EINVAL;
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d_size = bitmap_weight(indio_dev->active_scan_mask,
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indio_dev->masklength) *
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ad5933_channels[1].scan_type.storagebits / 8;
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if (indio_dev->buffer->access->set_bytes_per_datum)
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indio_dev->buffer->access->
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set_bytes_per_datum(indio_dev->buffer, d_size);
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ret = iio_sw_buffer_preenable(indio_dev);
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if (ret < 0)
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return ret;
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ret = ad5933_reset(st);
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if (ret < 0)
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