Commit addacf3b authored Nov 03, 2018 by Matheus Tavares Committed by Jonathan Cameron Nov 11, 2018

staging:iio:ad2s90: Check channel type at read_raw



This patch adds a channel type check at the beginning of the
ad2s90_read_raw function. Since ad2s90 has only one channel, it just
checks if the given channel is the expected one and if not, return
-EINVAL.

Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

parent ccba40e9

drivers/staging/iio/resolver/ad2s90.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -34,6 +34,9 @@ static int ad2s90_read_raw(struct iio_dev *indio_dev,
		int ret;
		struct ad2s90_state *st = iio_priv(indio_dev);

		if (chan->type != IIO_ANGL)
		return -EINVAL;

		switch (m) {
		case IIO_CHAN_INFO_SCALE:
		/* 2 * Pi / 2^12 */

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