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iio: light: si1133: fix uninitialized resp variable

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Read response register to detect any error.

Signed-off-by: Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Maxime Roussin-Bélanger 2018-07-31 16:13:21 -04:00 committed by Jonathan Cameron
parent 2b4ec22d36
commit 496fb59e12
1 changed files with 3 additions and 0 deletions
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3
drivers/iio/light/si1133.c
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@ -409,6 +409,9 @@ static int si1133_command(struct si1133_data *data, u8 cmd)
err = -ETIMEDOUT;
goto out;
}
err = regmap_read(data->regmap, SI1133_REG_RESPONSE0, &resp);
if (err)
goto out;
} else {
err = regmap_read_poll_timeout(data->regmap,
SI1133_REG_RESPONSE0, resp,