diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c
index d0e5f35462b1..cc6d56140d66 100644
--- a/drivers/iio/dac/ad5755.c
+++ b/drivers/iio/dac/ad5755.c
@@ -827,8 +827,9 @@ static int ad5755_probe(struct spi_device *spi)
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->num_channels = AD5755_NUM_CHANNELS;
 
-	mutex_init(&st->lock);
-
+	ret = devm_mutex_init(&spi->dev, &st->lock);
+	if (ret)
+		return ret;
 
 	pdata = ad5755_parse_fw(&spi->dev);
 	if (!pdata) {