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iio:ad5064: Fix off by one in DAC value range check

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The DAC value range check allows values one larger than the maximum value, which
effectively results in setting the DAC value to 0. This patch fixes the issue.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2013-03-01 13:07:00 +00:00 • committed by Jonathan Cameron
parent a26302628a
commit c5ef717a77
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/dac/ad5064.c
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@ -257,7 +257,7 @@ static int ad5064_write_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_RAW:
if (val > (1 << chan->scan_type.realbits) || val < 0)
if (val >= (1 << chan->scan_type.realbits) || val < 0)
return -EINVAL;
mutex_lock(&indio_dev->mlock);