Replace the code that guarantees the device stays in direct mode
with iio_device_claim_direct_mode() which does same.

Signed-off-by: Alison Schofield <[email protected]>
Cc: Daniel Baluta <[email protected]>
---
 drivers/iio/adc/ad7476.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c
index be85c2a..810c9a9 100644
--- a/drivers/iio/adc/ad7476.c
+++ b/drivers/iio/adc/ad7476.c
@@ -106,12 +106,11 @@ static int ad7476_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 = ad7476_scan_direct(st);
-               mutex_unlock(&indio_dev->mlock);
+               ret = iio_device_claim_direct_mode(indio_dev);
+               if (ret)
+                       return ret;
+               ret = ad7476_scan_direct(st);
+               iio_device_release_direct_mode(indio_dev);
 
                if (ret < 0)
                        return ret;
-- 
2.1.4

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