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iio: Fix iio_read_channel_processed_scale()

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The code was checking if (ret) from the processed
channel readout, not smart, we need to check if (ret < 0)
as this will likely be something like IIO_VAL_INT.

Fixes: 635ef601b238 ("iio: Provide iio_read_channel_processed_scale() API")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20210323122705.1326362-1-linus.walleij@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Linus Walleij 2021-03-23 13:27:05 +01:00 committed by Jonathan Cameron
parent 3e55bb6f2a
commit b3b64e2c15
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/inkern.c
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@ -702,7 +702,7 @@ int iio_read_channel_processed_scale(struct iio_channel *chan, int *val,
if (iio_channel_has_info(chan->channel, IIO_CHAN_INFO_PROCESSED)) {
ret = iio_channel_read(chan, val, NULL,
IIO_CHAN_INFO_PROCESSED);
if (ret)
if (ret < 0)
goto err_unlock;
*val *= scale;
} else {