[PATCH 3/8] iio: accel: mma8452: Switch to sparse friendly iio_device_claim/release_direct()

[Jonathan Cameron <jic23@kernel.org>]

From: Jonathan Cameron <Jonathan.Cameron@huawei.com>

These new functions allow sparse to find failures to release
direct mode reducing chances of bugs over the claim_direct_mode()
functions that are deprecated.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
 drivers/iio/accel/mma8452.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index 8ce4ddadc559..05f5482f366e 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -497,14 +497,13 @@ static int mma8452_read_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
-		ret = iio_device_claim_direct_mode(indio_dev);
-		if (ret)
-			return ret;
+		if (!iio_device_claim_direct(indio_dev))
+			return -EBUSY;
 
 		mutex_lock(&data->lock);
 		ret = mma8452_read(data, buffer);
 		mutex_unlock(&data->lock);
-		iio_device_release_direct_mode(indio_dev);
+		iio_device_release_direct(indio_dev);
 		if (ret < 0)
 			return ret;
 
@@ -781,12 +780,11 @@ static int mma8452_write_raw(struct iio_dev *indio_dev,
 {
 	int ret;
 
-	ret = iio_device_claim_direct_mode(indio_dev);
-	if (ret)
-		return ret;
+	if (!iio_device_claim_direct(indio_dev))
+		return -EBUSY;
 
 	ret = __mma8452_write_raw(indio_dev, chan, val, val2, mask);
-	iio_device_release_direct_mode(indio_dev);
+	iio_device_release_direct(indio_dev);
 	return ret;
 }
 
-- 
2.48.1