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>
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 @@
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);