diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c
index 38a8f73bd8d9c1eee5e395889cf62533c9b9b98e..f4a508107f0de9b70180d7d4bf3e7f59e46bb64a 100644
--- a/drivers/iio/frequency/ad9523.c
+++ b/drivers/iio/frequency/ad9523.c
@@ -522,7 +522,7 @@ static ssize_t ad9523_store(struct device *dev,
 		return ret;
 
 	if (!state)
-		return 0;
+		return len;
 
 	mutex_lock(&st->lock);
 	switch ((u32)this_attr->address) {
diff --git a/drivers/iio/light/si1133.c b/drivers/iio/light/si1133.c
index d3fbeb3bc463c9b75b32ac96c1df1c41af91ccff..5ac22c46da1f1ebb324aa4e75ea1991898a816d3 100644
--- a/drivers/iio/light/si1133.c
+++ b/drivers/iio/light/si1133.c
@@ -838,7 +838,7 @@ static int si1133_write_raw(struct iio_dev *iio_dev,
 		switch (chan->type) {
 		case IIO_INTENSITY:
 		case IIO_UVINDEX:
-			if (val != 0 || val != 1)
+			if (val != 0 && val != 1)
 				return -EINVAL;
 
 			return si1133_update_adcsens(data,