Commit b8518de1 authored Jun 21, 2015 by Peter Meerwald Committed by Sasha Levin Aug 04, 2015

iio: tmp006: Check channel info on write



[ Upstream commit f451957dafe712ab2cd4b7ca8ba9197798115fbe ]

only SAMP_FREQ is writable

Will lead to SAMP_FREQ being written by any attempt to write
to the other exported attributes and hence a rather unexpected
result!

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

parent b217d7a8

drivers/iio/temperature/tmp006.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -132,6 +132,9 @@ static int tmp006_write_raw(struct iio_dev *indio_dev,
		struct tmp006_data *data = iio_priv(indio_dev);
		int i;

		if (mask != IIO_CHAN_INFO_SAMP_FREQ)
		return -EINVAL;

		for (i = 0; i < ARRAY_SIZE(tmp006_freqs); i++)
		if ((val == tmp006_freqs[i][0]) &&
		(val2 == tmp006_freqs[i][1])) {