Commit 00f6742b authored by Nuno Sa's avatar Nuno Sa Committed by Jonathan Cameron
Browse files

iio: adis_buffer: check return value on page change 



On the trigger handler, we might need to change the device page. Hence,
we should check the return value from 'spi_write()' and act accordingly.

Signed-off-by: default avatarNuno Sa <nuno.sa@analog.com>
Reviewed-by: default avatarAlexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/20210422101911.135630-5-nuno.sa@analog.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent ab3df797

drivers/iio/imu/adis_buffer.c

+7 −1
Original line number Diff line number Diff line
@@ -134,7 +134,12 @@ static irqreturn_t adis_trigger_handler(int irq, void *p) 
		if (adis->current_page != 0) {

			adis->tx[0] = ADIS_WRITE_REG(ADIS_REG_PAGE_ID);

			adis->tx[1] = 0;

			spi_write(adis->spi, adis->tx, 2);

			ret = spi_write(adis->spi, adis->tx, 2);

			if (ret) {

				dev_err(&adis->spi->dev, "Failed to change device page: %d\n", ret);

				mutex_unlock(&adis->state_lock);

				goto irq_done;

			}

		}

	}
@@ -151,6 +156,7 @@ static irqreturn_t adis_trigger_handler(int irq, void *p) 
	iio_push_to_buffers_with_timestamp(indio_dev, adis->buffer,

		pf->timestamp);



irq_done:

	iio_trigger_notify_done(indio_dev->trig);



	return IRQ_HANDLED;