diff --git a/drivers/iio/light/si1133.c b/drivers/iio/light/si1133.c
index fdffdee16e49..ef5c38e303a6 100644
--- a/drivers/iio/light/si1133.c
+++ b/drivers/iio/light/si1133.c
@@ -390,6 +390,7 @@ static int si1133_cmd_reset_counter(struct si1133_data *data)
 
 static int si1133_command(struct si1133_data *data, u8 cmd)
 {
+	unsigned long timeout;
 	struct device *dev = &data->client->dev;
 	u32 resp;
 	int err;
@@ -417,8 +418,8 @@ static int si1133_command(struct si1133_data *data, u8 cmd)
 
 	if (cmd == SI1133_CMD_FORCE) {
 		/* wait for irq */
-		if (!wait_for_completion_timeout(&data->completion,
-			msecs_to_jiffies(SI1133_COMPLETION_TIMEOUT_MS))) {
+		timeout = msecs_to_jiffies(SI1133_COMPLETION_TIMEOUT_MS);
+		if (!wait_for_completion_timeout(&data->completion, timeout)) {
 			regmap_write(data->regmap, SI1133_REG_IRQ_ENABLE, 0);
 			err = -ETIMEDOUT;
 			goto out;