linux-kernel - [PATCH v2 2/4] iio: inkern: Convert iio_read_avail_channel

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Message-Id: <20190323172809.14407-2-contact@artur-rojek.eu>
Date:   Sat, 23 Mar 2019 18:28:07 +0100
From:   Artur Rojek <contact@...ur-rojek.eu>
To:     Sebastian Reichel <sre@...nel.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     linux-pm@...r.kernel.org, linux-iio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Paul Cercueil <paul@...pouillou.net>,
        Artur Rojek <contact@...ur-rojek.eu>
Subject: [PATCH v2 2/4] iio: inkern: Convert iio_read_avail_channel_raw into a wrapper

Convert "iio_read_avail_channel_raw" over to a wrapper around
"iio_read_avail_channel_attribute".

With the introduction of "iio_read_avail_channel_attribute",
the necessity of having a separate call to read raw channel values
became redundant.

Signed-off-by: Artur Rojek <contact@...ur-rojek.eu>
---

Changes:

v2: new patch

 drivers/iio/inkern.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
index f19dbde3c945..4a5eff3f18bc 100644
--- a/drivers/iio/inkern.c
+++ b/drivers/iio/inkern.c
@@ -759,16 +759,8 @@ int iio_read_avail_channel_raw(struct iio_channel *chan,
 	int ret;
 	int type;
 
-	mutex_lock(&chan->indio_dev->info_exist_lock);
-	if (!chan->indio_dev->info) {
-		ret = -ENODEV;
-		goto err_unlock;
-	}
-
-	ret = iio_channel_read_avail(chan,
-				     vals, &type, length, IIO_CHAN_INFO_RAW);
-err_unlock:
-	mutex_unlock(&chan->indio_dev->info_exist_lock);
+	ret = iio_read_avail_channel_attribute(chan, vals, &type, length,
+					 IIO_CHAN_INFO_RAW);
 
 	if (ret >= 0 && type != IIO_VAL_INT)
 		/* raw values are assumed to be IIO_VAL_INT */
-- 
2.21.0