iio: chemical: scd4x: Switch to sparse friendly iio_device_claim/release_direct()

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.

Cc: Roan van Dijk <roan@protonic.nl>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Marcelo Schmitt <marcelo.schmitt1@gmail.com>
Link: https://patch.msgid.link/20250331121317.1694135-6-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/chemical/scd4x.c b/drivers/iio/chemical/scd4x.c
index 50e3ac44422bdff129eacf0eaf4d37058fe7bd85..4877bd3e907bb5ae9d7e3167d7b8b321e108bff7 100644 (file)
--- a/drivers/iio/chemical/scd4x.c
+++ b/drivers/iio/chemical/scd4x.c
@@ -358,15 +358,14 @@ static int scd4x_read_raw(struct iio_dev *indio_dev,
                        return IIO_VAL_INT;
                }
 
-               ret = iio_device_claim_direct_mode(indio_dev);
-               if (ret)
-                       return ret;
+               if (!iio_device_claim_direct(indio_dev))
+                       return -EBUSY;
 
                mutex_lock(&state->lock);
                ret = scd4x_read_channel(state, chan->address);
                mutex_unlock(&state->lock);
 
-               iio_device_release_direct_mode(indio_dev);
+               iio_device_release_direct(indio_dev);
                if (ret < 0)
                        return ret;