diff --git a/drivers/iio/adc/ti-ads1119.c b/drivers/iio/adc/ti-ads1119.c
index 7f771c7023b8..79be71b4de96 100644
--- a/drivers/iio/adc/ti-ads1119.c
+++ b/drivers/iio/adc/ti-ads1119.c
@@ -280,6 +280,9 @@ static int ads1119_single_conversion(struct ads1119_state *st,
 	if (ret)
 		goto pdown;
 
+	if (st->client->irq)
+		reinit_completion(&st->completion);
+
 	ret = i2c_smbus_write_byte(st->client, ADS1119_CMD_START_SYNC);
 	if (ret)
 		goto pdown;