iio: adc: ad4030: 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/20250217141630.897334-10-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ad4030.c b/drivers/iio/adc/ad4030.c
index ab5497c8ea1ea82df32df8d90701e7bce9eecc20..209cfc2e17850a3cecf75dc40c3ba60a9ed32e63 100644 (file)
--- a/drivers/iio/adc/ad4030.c
+++ b/drivers/iio/adc/ad4030.c
@@ -784,13 +784,12 @@ static int ad4030_read_raw(struct iio_dev *indio_dev,
        if (info == IIO_CHAN_INFO_SCALE)
                return ad4030_get_chan_scale(indio_dev, chan, val, val2);
 
-       ret = iio_device_claim_direct_mode(indio_dev);
-       if (ret)
-               return ret;
+       if (!iio_device_claim_direct(indio_dev))
+               return -EBUSY;
 
        ret = ad4030_read_raw_dispatch(indio_dev, chan, val, val2, info);
 
-       iio_device_release_direct_mode(indio_dev);
+       iio_device_release_direct(indio_dev);
 
        return ret;
 }
@@ -822,13 +821,12 @@ static int ad4030_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 = ad4030_write_raw_dispatch(indio_dev, chan, val, val2, info);
 
-       iio_device_release_direct_mode(indio_dev);
+       iio_device_release_direct(indio_dev);
 
        return ret;
 }
@@ -839,16 +837,15 @@ static int ad4030_reg_access(struct iio_dev *indio_dev, unsigned int reg,
        const struct ad4030_state *st = iio_priv(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;
 
        if (readval)
                ret = regmap_read(st->regmap, reg, readval);
        else
                ret = regmap_write(st->regmap, reg, writeval);
 
-       iio_device_release_direct_mode(indio_dev);
+       iio_device_release_direct(indio_dev);
 
        return ret;
 }