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Commit e278df1c authored by Peter Meerwald's avatar Peter Meerwald Committed by Greg Kroah-Hartman
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staging: iio: add check for measurement configuration value passed to hmc5843 



Signed-off-by: default avatarPeter Meerwald <pmeerw@pmeerw.net>
Acked-by: default avatarJonathan Cameron <jic23@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 13f6eb69

drivers/staging/iio/magnetometer/hmc5843.c

+6 −1
Original line number Diff line number Diff line
@@ -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);