Commit 135f0646 authored Mar 04, 2013 by Lars-Peter Clausen Committed by Jonathan Cameron Mar 17, 2013

iio:ad7923: Return error if we didn't get the expected result

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@metafoo.de>
Cc: Patrick Vasseur <patrick.vasseur@c-s.fr>
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

parent 6c23811e

drivers/iio/adc/ad7923.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -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;
		}