diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 41fb32de5992..29e32b71f0f7 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -634,13 +634,15 @@ static int ad7192_probe(struct spi_device *spi)
 	st = iio_priv(indio_dev);
 
 	st->reg = devm_regulator_get(&spi->dev, "avdd");
-	if (!IS_ERR(st->reg)) {
-		ret = regulator_enable(st->reg);
-		if (ret)
-			return ret;
+	if (IS_ERR(st->reg))
+		return PTR_ERR(st->reg);
 
-		voltage_uv = regulator_get_voltage(st->reg);
+	ret = regulator_enable(st->reg);
+	if (ret) {
+		dev_err(&spi->dev, "Failed to enable specified AVdd supply\n");
+		return ret;
 	}
+	voltage_uv = regulator_get_voltage(st->reg);
 
 	if (pdata->vref_mv)
 		st->int_vref_mv = pdata->vref_mv;
@@ -689,8 +691,7 @@ static int ad7192_probe(struct spi_device *spi)
 error_remove_trigger:
 	ad_sd_cleanup_buffer_and_trigger(indio_dev);
 error_disable_reg:
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
+	regulator_disable(st->reg);
 
 	return ret;
 }
@@ -703,8 +704,7 @@ static int ad7192_remove(struct spi_device *spi)
 	iio_device_unregister(indio_dev);
 	ad_sd_cleanup_buffer_and_trigger(indio_dev);
 
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
+	regulator_disable(st->reg);
 
 	return 0;
 }
diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index a88236e74cdb..e14960038d3e 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -174,13 +174,15 @@ static int ad7780_probe(struct spi_device *spi)
 	ad_sd_init(&st->sd, indio_dev, spi, &ad7780_sigma_delta_info);
 
 	st->reg = devm_regulator_get(&spi->dev, "avdd");
-	if (!IS_ERR(st->reg)) {
-		ret = regulator_enable(st->reg);
-		if (ret)
-			return ret;
+	if (IS_ERR(st->reg))
+		return PTR_ERR(st->reg);
 
-		voltage_uv = regulator_get_voltage(st->reg);
+	ret = regulator_enable(st->reg);
+	if (ret) {
+		dev_err(&spi->dev, "Failed to enable specified AVdd supply\n");
+		return ret;
 	}
+	voltage_uv = regulator_get_voltage(st->reg);
 
 	st->chip_info =
 		&ad7780_chip_info_tbl[spi_get_device_id(spi)->driver_data];
@@ -222,8 +224,7 @@ static int ad7780_probe(struct spi_device *spi)
 error_cleanup_buffer_and_trigger:
 	ad_sd_cleanup_buffer_and_trigger(indio_dev);
 error_disable_reg:
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
+	regulator_disable(st->reg);
 
 	return ret;
 }
@@ -236,8 +237,7 @@ static int ad7780_remove(struct spi_device *spi)
 	iio_device_unregister(indio_dev);
 	ad_sd_cleanup_buffer_and_trigger(indio_dev);
 
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
+	regulator_disable(st->reg);
 
 	return 0;
 }
diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index 744c8ee9c5a6..7d8dc6cab720 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -213,10 +213,13 @@ static int ad9832_probe(struct spi_device *spi)
 	}
 
 	reg = devm_regulator_get(&spi->dev, "avdd");
-	if (!IS_ERR(reg)) {
-		ret = regulator_enable(reg);
-		if (ret)
-			return ret;
+	if (IS_ERR(reg))
+		return PTR_ERR(reg);
+
+	ret = regulator_enable(reg);
+	if (ret) {
+		dev_err(&spi->dev, "Failed to enable specified AVDD supply\n");
+		return ret;
 	}
 
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
@@ -311,8 +314,7 @@ static int ad9832_probe(struct spi_device *spi)
 	return 0;
 
 error_disable_reg:
-	if (!IS_ERR(reg))
-		regulator_disable(reg);
+	regulator_disable(reg);
 
 	return ret;
 }
@@ -323,8 +325,7 @@ static int ad9832_remove(struct spi_device *spi)
 	struct ad9832_state *st = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
+	regulator_disable(st->reg);
 
 	return 0;
 }
diff --git a/drivers/staging/iio/frequency/ad9834.c b/drivers/staging/iio/frequency/ad9834.c
index ca3cea68d8d7..19216af1dfc9 100644
--- a/drivers/staging/iio/frequency/ad9834.c
+++ b/drivers/staging/iio/frequency/ad9834.c
@@ -330,10 +330,13 @@ static int ad9834_probe(struct spi_device *spi)
 	}
 
 	reg = devm_regulator_get(&spi->dev, "avdd");
-	if (!IS_ERR(reg)) {
-		ret = regulator_enable(reg);
-		if (ret)
-			return ret;
+	if (IS_ERR(reg))
+		return PTR_ERR(reg);
+
+	ret = regulator_enable(reg);
+	if (ret) {
+		dev_err(&spi->dev, "Failed to enable specified AVDD supply\n");
+		return ret;
 	}
 
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
@@ -416,8 +419,7 @@ static int ad9834_probe(struct spi_device *spi)
 	return 0;
 
 error_disable_reg:
-	if (!IS_ERR(reg))
-		regulator_disable(reg);
+	regulator_disable(reg);
 
 	return ret;
 }
@@ -428,8 +430,7 @@ static int ad9834_remove(struct spi_device *spi)
 	struct ad9834_state *st = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
+	regulator_disable(st->reg);
 
 	return 0;
 }
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 62f61bcc0003..8f2736a0f854 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -724,12 +724,15 @@ static int ad5933_probe(struct i2c_client *client,
 		pdata = &ad5933_default_pdata;
 
 	st->reg = devm_regulator_get(&client->dev, "vdd");
-	if (!IS_ERR(st->reg)) {
-		ret = regulator_enable(st->reg);
-		if (ret)
-			return ret;
-		voltage_uv = regulator_get_voltage(st->reg);
+	if (IS_ERR(st->reg))
+		return PTR_ERR(st->reg);
+
+	ret = regulator_enable(st->reg);
+	if (ret) {
+		dev_err(&client->dev, "Failed to enable specified VDD supply\n");
+		return ret;
 	}
+	voltage_uv = regulator_get_voltage(st->reg);
 
 	if (voltage_uv)
 		st->vref_mv = voltage_uv / 1000;
@@ -772,8 +775,7 @@ static int ad5933_probe(struct i2c_client *client,
 error_unreg_ring:
 	iio_kfifo_free(indio_dev->buffer);
 error_disable_reg:
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
+	regulator_disable(st->reg);
 
 	return ret;
 }
@@ -785,8 +787,7 @@ static int ad5933_remove(struct i2c_client *client)
 
 	iio_device_unregister(indio_dev);
 	iio_kfifo_free(indio_dev->buffer);
-	if (!IS_ERR(st->reg))
-		regulator_disable(st->reg);
+	regulator_disable(st->reg);
 
 	return 0;
 }