diff options
| -rw-r--r-- | drivers/iio/addac/stx104.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iio/addac/stx104.c b/drivers/iio/addac/stx104.c index 8730b79e921c..0ed5f71b18cb 100644 --- a/drivers/iio/addac/stx104.c +++ b/drivers/iio/addac/stx104.c @@ -13,6 +13,7 @@ #include <linux/ioport.h> #include <linux/isa.h> #include <linux/kernel.h> +#include <linux/limits.h> #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/mutex.h> @@ -181,8 +182,7 @@ static int stx104_write_raw(struct iio_dev *indio_dev, return 0; case IIO_CHAN_INFO_RAW: if (chan->output) { - /* DAC can only accept up to a 16-bit value */ - if ((unsigned int)val > 65535) + if (val < 0 || val > U16_MAX) return -EINVAL; mutex_lock(&priv->lock); |