From c70df20e31595cf696c8b4f50fc7d82b69f3dd5c Mon Sep 17 00:00:00 2001 From: Alison Schofield Date: Tue, 24 May 2016 12:16:23 -0700 Subject: [PATCH] iio: adc: ad7266: claim direct mode during sensor read Driver was checking for direct mode but not locking it down. Use iio_device_claim_direct_mode() to guarantee device stays in direct mode. Signed-off-by: Alison Schofield Acked-by: Daniel Baluta Signed-off-by: Jonathan Cameron --- drivers/iio/adc/ad7266.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c index 21e19b60e2b9..01240aeeeab0 100644 --- a/drivers/iio/adc/ad7266.c +++ b/drivers/iio/adc/ad7266.c @@ -154,12 +154,11 @@ static int ad7266_read_raw(struct iio_dev *indio_dev, switch (m) { case IIO_CHAN_INFO_RAW: - if (iio_buffer_enabled(indio_dev)) - return -EBUSY; - - ret = ad7266_read_single(st, val, chan->address); + ret = iio_device_claim_direct_mode(indio_dev); if (ret) return ret; + ret = ad7266_read_single(st, val, chan->address); + iio_device_release_direct_mode(indio_dev); *val = (*val >> 2) & 0xfff; if (chan->scan_type.sign == 's') -- 2.20.1