Message ID | 20180421004153.19073-9-masneyb@onstation.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
On Fri, 20 Apr 2018 20:41:48 -0400 Brian Masney <masneyb@onstation.org> wrote: > 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@onstation.org> Comment inline. > --- > 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; How about using kstrtou16 which does this check internally... > > + 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) -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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)
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@onstation.org> --- drivers/staging/iio/light/tsl2x7x.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-)