diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c
index d0702d403fbe..d90a5caa028f 100644
--- a/drivers/iio/adc/ti-adc128s052.c
+++ b/drivers/iio/adc/ti-adc128s052.c
@@ -172,7 +172,9 @@ static int adc128_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	mutex_init(&adc->lock);
+	ret = devm_mutex_init(&spi->dev, &adc->lock);
+	if (ret)
+		return ret;
 
 	return devm_iio_device_register(&spi->dev, indio_dev);
 }