staging: iio: ad7606: use iio_device_{claim|release}_direct_mode()

Replace the code that guarantees the device stays in direct mode with
iio_device_{claim|release}_direct_mode() which does same.

Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index 6dbc811..f79ee61 100644 (file)
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -88,12 +88,12 @@ static int ad7606_read_raw(struct iio_dev *indio_dev,
 
        switch (m) {
        case IIO_CHAN_INFO_RAW:
-               mutex_lock(&indio_dev->mlock);
-               if (iio_buffer_enabled(indio_dev))
-                       ret = -EBUSY;
-               else
-                       ret = ad7606_scan_direct(indio_dev, chan->address);
-               mutex_unlock(&indio_dev->mlock);
+               ret = iio_device_claim_direct_mode(indio_dev);
+               if (ret)
+                       return ret;
+
+               ret = ad7606_scan_direct(indio_dev, chan->address);
+               iio_device_release_direct_mode(indio_dev);
 
                if (ret < 0)
                        return ret;