Commit 070e8c7d authored Nov 03, 2018 by Matheus Tavares Committed by Jonathan Cameron Nov 11, 2018

staging:iio:ad2s90: Make read_raw return spi_read's error code

Previously, when spi_read returned an error code inside ad2s90_read_raw,
the code was ignored and IIO_VAL_INT was returned. This patch makes the
function return the error code returned by spi_read when it fails.

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

parent 5ccc612b

drivers/staging/iio/resolver/ad2s90.c

+4 −3

Original line number	Diff line number	Diff line
		@@ -36,11 +36,12 @@ static int ad2s90_read_raw(struct iio_dev *indio_dev,

		mutex_lock(&st->lock);
		ret = spi_read(st->sdev, st->rx, 2);
		if (ret)
		goto error_ret;
		if (ret < 0) {
		mutex_unlock(&st->lock);
		return ret;
		}
		*val = (((u16)(st->rx[0])) << 4) \| ((st->rx[1] & 0xF0) >> 4);

		error_ret:
		mutex_unlock(&st->lock);

		return IIO_VAL_INT;