From: Peter Meerwald <p.meerwald@xxxxxxxxxxxxxxxxxx> Signed-off-by: Peter Meerwald <pmeerw@xxxxxxxxxx> --- drivers/staging/iio/magnetometer/hmc5843.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c index 6888e04..57ab4fb 100644 --- a/drivers/staging/iio/magnetometer/hmc5843.c +++ b/drivers/staging/iio/magnetometer/hmc5843.c @@ -281,9 +281,14 @@ static ssize_t hmc5843_set_measurement_configuration(struct device *dev, struct i2c_client *client = to_i2c_client(indio_dev->dev.parent); struct hmc5843_data *data = iio_priv(indio_dev); unsigned long meas_conf = 0; - int error = kstrtoul(buf, 10, &meas_conf); + int error; + + error = kstrtoul(buf, 10, &meas_conf); if (error) return error; + if (meas_conf >= HMC5843_MEAS_CONF_NOT_USED) + return -EINVAL; + mutex_lock(&data->lock); dev_dbg(dev, "set mode to %lu\n", meas_conf); -- 1.7.5.4 -- 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
