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authorAlison Schofield <amsfield22@gmail.com>2016-05-24 12:16:23 -0700
committerJonathan Cameron <jic23@kernel.org>2016-05-29 18:01:13 +0100
commitc70df20e31595cf696c8b4f50fc7d82b69f3dd5c (patch)
treee21548ca98f0e864838aea850411c86be66301e5 /drivers
parent14f295c846063c4f1812b09427195cee522aa006 (diff)
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 <amsfield22@gmail.com> Acked-by: Daniel Baluta <daniel.baluta@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/iio/adc/ad7266.c7
1 files 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')