From d02ec00d00a5eb5e0ca8ef6ddf0a3774adb52b6a Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Mon, 18 Jul 2016 12:34:17 -0700 Subject: [PATCH] iio: adc: ad7298: use iio helper function to guarantee direct mode 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 Cc: Daniel Baluta Signed-off-by: Jonathan Cameron --- drivers/iio/adc/ad7298.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/iio/adc/ad7298.c b/drivers/iio/adc/ad7298.c index 10ec8fc..e399bf0 100644 --- a/drivers/iio/adc/ad7298.c +++ b/drivers/iio/adc/ad7298.c @@ -239,16 +239,16 @@ static int ad7298_read_raw(struct iio_dev *indio_dev, switch (m) { case IIO_CHAN_INFO_RAW: - mutex_lock(&indio_dev->mlock); - if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED) { - ret = -EBUSY; - } else { - if (chan->address == AD7298_CH_TEMP) - ret = ad7298_scan_temp(st, val); - else - ret = ad7298_scan_direct(st, chan->address); - } - mutex_unlock(&indio_dev->mlock); + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; + + if (chan->address == AD7298_CH_TEMP) + ret = ad7298_scan_temp(st, val); + else + ret = ad7298_scan_direct(st, chan->address); + + iio_device_release_direct_mode(indio_dev); if (ret < 0) return ret; -- 2.7.4