3.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpen...@oracle.com>

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 <dan.carpen...@oracle.com>
Signed-off-by: Jonathan Cameron <ji...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/staging/iio/adc/ad7291.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/staging/iio/adc/ad7291.c
+++ b/drivers/staging/iio/adc/ad7291.c
@@ -465,7 +465,7 @@ static int ad7291_probe(struct i2c_clien
        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_clien
        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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