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Date:	Fri,  8 Aug 2014 13:37:25 -0700
From:	Kamal Mostafa <>
Cc:	Dan Carpenter <>,
	Jonathan Cameron <>,
	Kamal Mostafa <>
Subject: [PATCH 3.13 022/259] staging: iio/ad7291: fix error code in ad7291_probe() -stable review patch.  If anyone has any objections, please let me know.


From: Dan Carpenter <>

commit b70e19c222a64018d308ebc80333575aff9f4e51 upstream.

We should be returning a negative error code instead of success here.

This would have been detected by GCC, except that the "ret" variable was
initialized with a bogus value to disable GCC's uninitialized variable
warnings.  I've cleaned that up, as well.

Signed-off-by: Dan Carpenter <>
Signed-off-by: Jonathan Cameron <>
Signed-off-by: Kamal Mostafa <>
 drivers/staging/iio/adc/ad7291.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c
index d13f8ae..6c88359 100644
--- a/drivers/staging/iio/adc/ad7291.c
+++ b/drivers/staging/iio/adc/ad7291.c
@@ -465,7 +465,7 @@ static int ad7291_probe(struct i2c_client *client,
 	struct ad7291_platform_data *pdata = client->dev.platform_data;
 	struct ad7291_chip_info *chip;
 	struct iio_dev *indio_dev;
-	int ret = 0;
+	int ret;
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
 	if (!indio_dev)
@@ -475,7 +475,7 @@ static int ad7291_probe(struct i2c_client *client,
 	if (pdata && pdata->use_external_ref) {
 		chip->reg = devm_regulator_get(&client->dev, "vref");
 		if (IS_ERR(chip->reg))
-			return ret;
+			return PTR_ERR(chip->reg);
 		ret = regulator_enable(chip->reg);
 		if (ret)

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