diff options
| -rw-r--r-- | drivers/iio/adc/ad799x.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c index a3f5254f4e51..ec0200dd52cb 100644 --- a/drivers/iio/adc/ad799x.c +++ b/drivers/iio/adc/ad799x.c @@ -282,12 +282,11 @@ static int ad799x_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 = ad799x_scan_direct(st, chan->scan_index); - mutex_unlock(&indio_dev->mlock); + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; + ret = ad799x_scan_direct(st, chan->scan_index); + iio_device_release_direct_mode(indio_dev); if (ret < 0) return ret; @@ -395,11 +394,9 @@ static int ad799x_write_event_config(struct iio_dev *indio_dev, struct ad799x_state *st = iio_priv(indio_dev); int ret; - mutex_lock(&indio_dev->mlock); - if (iio_buffer_enabled(indio_dev)) { - ret = -EBUSY; - goto done; - } + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; if (state) st->config |= BIT(chan->scan_index) << AD799X_CHANNEL_SHIFT; @@ -412,10 +409,7 @@ static int ad799x_write_event_config(struct iio_dev *indio_dev, st->config &= ~AD7998_ALERT_EN; ret = ad799x_write_config(st, st->config); - -done: - mutex_unlock(&indio_dev->mlock); - + iio_device_release_direct_mode(indio_dev); return ret; } |