iio: adc: max11410: 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.

Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250217141630.897334-27-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/max11410.c b/drivers/iio/adc/max11410.c
index 6e06c62715a80fc58f29c3ee6e7e122952d9c49c..437d9f24b5a1dc658f6c9878ab5c3f73d8c408fd 100644 (file)
--- a/drivers/iio/adc/max11410.c
+++ b/drivers/iio/adc/max11410.c
@@ -471,9 +471,8 @@ static int max11410_read_raw(struct iio_dev *indio_dev,
 
                return IIO_VAL_INT;
        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(&state->lock);
 
@@ -481,7 +480,7 @@ static int max11410_read_raw(struct iio_dev *indio_dev,
 
                mutex_unlock(&state->lock);
 
-               iio_device_release_direct_mode(indio_dev);
+               iio_device_release_direct(indio_dev);
 
                if (ret)
                        return ret;
@@ -550,9 +549,8 @@ static int max11410_write_raw(struct iio_dev *indio_dev,
                if (val != 0 || val2 == 0)
                        return -EINVAL;
 
-               ret = iio_device_claim_direct_mode(indio_dev);
-               if (ret)
-                       return ret;
+               if (!iio_device_claim_direct(indio_dev))
+                       return -EBUSY;
 
                /* Convert from INT_PLUS_MICRO to FRACTIONAL_LOG2 */
                val2 = val2 * DIV_ROUND_CLOSEST(BIT(24), 1000000);
@@ -561,16 +559,15 @@ static int max11410_write_raw(struct iio_dev *indio_dev,
 
                st->channels[chan->address].gain = clamp_val(gain, 0, 7);
 
-               iio_device_release_direct_mode(indio_dev);
+               iio_device_release_direct(indio_dev);
 
                return 0;
        case IIO_CHAN_INFO_SAMP_FREQ:
-               ret = iio_device_claim_direct_mode(indio_dev);
-               if (ret)
-                       return ret;
+               if (!iio_device_claim_direct(indio_dev))
+                       return -EBUSY;
 
                ret = __max11410_write_samp_freq(st, val, val2);
-               iio_device_release_direct_mode(indio_dev);
+               iio_device_release_direct(indio_dev);
 
                return ret;
        default: