Messages in this thread Patch in this message | | | From | Matheus Tavares <> | Subject | [PATCH 6/6] staging:iio:ad2s90: Check channel type at read_raw | Date | Thu, 25 Oct 2018 21:45:12 -0300 |
| |
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> --- drivers/staging/iio/resolver/ad2s90.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c index 52b656875ed1..24002042a5c5 100644 --- a/drivers/staging/iio/resolver/ad2s90.c +++ b/drivers/staging/iio/resolver/ad2s90.c @@ -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 - 1) ~= 0.001534355 */ -- 2.18.0
| |