diff --git a/drivers/iio/addac/ad74115.c b/drivers/iio/addac/ad74115.c
index f8b04d86b01f..41e0b1d334cc 100644
--- a/drivers/iio/addac/ad74115.c
+++ b/drivers/iio/addac/ad74115.c
@@ -1835,7 +1835,10 @@ static int ad74115_probe(struct spi_device *spi)
 	st = iio_priv(indio_dev);
 
 	st->spi = spi;
-	mutex_init(&st->lock);
+	ret = devm_mutex_init(dev, &st->lock);
+	if (ret)
+		return ret;
+
 	init_completion(&st->adc_data_completion);
 
 	indio_dev->name = AD74115_NAME;