The sysfs attributes in_illuminance0_target_input, in_illuminance0_calibrate, and in_proximity0_calibrate did not have proper range checking in place so this patch adds the correct range checks. Signed-off-by: Brian Masney <masneyb@xxxxxxxxxxxxx> --- drivers/staging/iio/light/tsl2x7x.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/drivers/staging/iio/light/tsl2x7x.c b/drivers/staging/iio/light/tsl2x7x.c index 56730baea927..15bc0af1bb6c 100644 --- a/drivers/staging/iio/light/tsl2x7x.c +++ b/drivers/staging/iio/light/tsl2x7x.c @@ -835,9 +835,10 @@ static ssize_t in_illuminance0_target_input_store(struct device *dev, if (kstrtoul(buf, 0, &value)) return -EINVAL; - if (value) - chip->settings.als_cal_target = value; + if (value < 0 || value > 65535) + return -ERANGE; + chip->settings.als_cal_target = value; ret = tsl2x7x_invoke_change(indio_dev); if (ret < 0) return ret; @@ -853,14 +854,12 @@ static ssize_t in_illuminance0_calibrate_store(struct device *dev, bool value; int ret; - if (strtobool(buf, &value)) + if (kstrtobool(buf, &value) || !value) return -EINVAL; - if (value) { - ret = tsl2x7x_als_calibrate(indio_dev); - if (ret < 0) - return ret; - } + ret = tsl2x7x_als_calibrate(indio_dev); + if (ret < 0) + return ret; ret = tsl2x7x_invoke_change(indio_dev); if (ret < 0) @@ -946,14 +945,12 @@ static ssize_t in_proximity0_calibrate_store(struct device *dev, bool value; int ret; - if (strtobool(buf, &value)) + if (kstrtobool(buf, &value) || !value) return -EINVAL; - if (value) { - ret = tsl2x7x_prox_cal(indio_dev); - if (ret < 0) - return ret; - } + ret = tsl2x7x_prox_cal(indio_dev); + if (ret < 0) + return ret; ret = tsl2x7x_invoke_change(indio_dev); if (ret < 0) -- 2.14.3 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html