Instead of leaving 'val' uninitialized return an error if the result's address did not match that of the channel we were trying to read. Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx> Cc: Patrick Vasseur <patrick.vasseur@xxxxxx> Cc: Christophe Leroy <christophe.leroy@xxxxxx> --- drivers/iio/adc/ad7923.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c index 766c740..36eee24 100644 --- a/drivers/iio/adc/ad7923.c +++ b/drivers/iio/adc/ad7923.c @@ -199,6 +199,8 @@ static int ad7923_read_raw(struct iio_dev *indio_dev, if (chan->address == EXTRACT(ret, 12, 4)) *val = EXTRACT(ret, 0, 12); + else + return -EIO; return IIO_VAL_INT; } -- 1.8.0 -- 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
