[PATCH 05/11] iio: adc: ad7606: use devm_mutex_init()

From: David Lechner
Date: Wed Mar 12 2025 - 21:18:02 EST


Use devm_mutex_init() in ad7606_probe(). Mutexes should be cleaned up
on driver removal.

Also add missing include while we are touching this.

Signed-off-by: David Lechner <dlechner@xxxxxxxxxxxx>
---
drivers/iio/adc/ad7606.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c
index 440e1e5a9b18570dc6441bff91afbc51d20cbc47..f190269ac8ddd859e94eb24c26f5f010d0951646 100644
--- a/drivers/iio/adc/ad7606.c
+++ b/drivers/iio/adc/ad7606.c
@@ -13,6 +13,7 @@
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/mutex.h>
#include <linux/property.h>
#include <linux/pwm.h>
#include <linux/regulator/consumer.h>
@@ -1332,8 +1333,11 @@ int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,
st = iio_priv(indio_dev);
dev_set_drvdata(dev, indio_dev);

+ ret = devm_mutex_init(dev, &st->lock);
+ if (ret)
+ return ret;
+
st->dev = dev;
- mutex_init(&st->lock);
st->bops = bops;
st->base_address = base_address;
st->oversampling = 1;

--
2.43.0