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| author | Lars-Peter Clausen <lars@metafoo.de> | 2013-03-01 13:07:00 +0000 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2013-03-02 16:28:42 +0000 |
| commit | c5ef717a774b326a6708e2e14ddf9957b619d5c4 (patch) | |
| tree | d9df99fd5a2b26e31344a379c95d52c7e16acfcc /drivers/iio/dac/ad5064.c | |
| parent | a26302628ad164980493ab7768a05a7f3a8d8842 (diff) | |
| download | op-kernel-dev-c5ef717a774b326a6708e2e14ddf9957b619d5c4.zip op-kernel-dev-c5ef717a774b326a6708e2e14ddf9957b619d5c4.tar.gz | |
iio:ad5064: Fix off by one in DAC value range check
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>
Diffstat (limited to 'drivers/iio/dac/ad5064.c')
| -rw-r--r-- | drivers/iio/dac/ad5064.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c index 7b77708..f724a54 100644 --- a/drivers/iio/dac/ad5064.c +++ b/drivers/iio/dac/ad5064.c @@ -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); |
