On Tue, May 24, 2016 at 10:18 PM, Alison Schofield <amsfield22@xxxxxxxxx> wrote:
> Replace the code that guarantees the device stays in direct mode
> with iio_device_claim_direct_mode() which does same.
>
> Signed-off-by: Alison Schofield <amsfield22@xxxxxxxxx>
> Cc: Daniel Baluta <daniel.baluta@xxxxxxxxx>
Acked-by: Daniel Baluta <daniel.baluta@xxxxxxxxx>
> ---
> drivers/iio/adc/ad7887.c | 11 +++++------
> 1 file changed, 5 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c
> index 2d3c397..ee2ccc1 100644
> --- a/drivers/iio/adc/ad7887.c
> +++ b/drivers/iio/adc/ad7887.c
> @@ -156,12 +156,11 @@ static int ad7887_read_raw(struct iio_dev *indio_dev,
>
> switch (m) {
> case IIO_CHAN_INFO_RAW:
> - mutex_lock(&indio_dev->mlock);
> - if (iio_buffer_enabled(indio_dev))
> - ret = -EBUSY;
> - else
> - ret = ad7887_scan_direct(st, chan->address);
> - mutex_unlock(&indio_dev->mlock);
> + ret = iio_device_claim_direct_mode(indio_dev);
> + if (ret)
> + return ret;
> + ret = ad7887_scan_direct(st, chan->address);
> + iio_device_release_direct_mode(indio_dev);
>
> if (ret < 0)
> return ret;
> --
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