From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Date: Mon, 17 Feb 2025 14:16:16 +0000 (+0000)
Subject: iio: adc: ad7791: Switch to sparse friendly iio_device_claim/release_direct()
X-Git-Tag: v6.15-rc1~78^2~8^2~67
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=85e840ced7a89cbd7c401f299eb337db5f41acd0;p=thirdparty%2Fkernel%2Flinux.git

iio: adc: ad7791: 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/20250217141630.897334-17-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---

diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c
index e49d4843f304c..597c2686ffa48 100644
--- a/drivers/iio/adc/ad7791.c
+++ b/drivers/iio/adc/ad7791.c
@@ -343,13 +343,12 @@ static int ad7791_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 = __ad7791_write_raw(indio_dev, chan, val, val2, mask);
 
-	iio_device_release_direct_mode(indio_dev);
+	iio_device_release_direct(indio_dev);
 	return ret;
 }