diff options
| author | Alison Schofield <amsfield22@gmail.com> | 2017-01-21 01:11:30 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-15 17:53:14 +0300 |
| commit | f89e669323adfc43ac881f7c38904c911140f983 (patch) | |
| tree | 0bde8d16e489ed52c052b16cdd8633195c15cac8 /drivers/iio | |
| parent | 6d8897645b984fee86d260b1b0ad7044b27e6d59 (diff) | |
| download | linux-f89e669323adfc43ac881f7c38904c911140f983.tar.xz | |
iio: proximity: sx9500: claim direct mode during raw proximity reads
[ Upstream commit 6b2e7589b82ff534dd5c6d67dd83c53f13691bec ]
Driver was checking for direct mode but not locking it. Use the
claim/release helper functions to guarantee the device stays in
direct mode during raw reads of proximity data.
Signed-off-by: Alison Schofield <amsfield22@gmail.com>
Reviewed-by: Vlad Dogaru <ddvlad@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/proximity/sx9500.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/iio/proximity/sx9500.c b/drivers/iio/proximity/sx9500.c index 1f06282ec793..9ea147f1a50d 100644 --- a/drivers/iio/proximity/sx9500.c +++ b/drivers/iio/proximity/sx9500.c @@ -387,14 +387,18 @@ static int sx9500_read_raw(struct iio_dev *indio_dev, int *val, int *val2, long mask) { struct sx9500_data *data = iio_priv(indio_dev); + int ret; switch (chan->type) { case IIO_PROXIMITY: switch (mask) { case IIO_CHAN_INFO_RAW: - if (iio_buffer_enabled(indio_dev)) - return -EBUSY; - return sx9500_read_proximity(data, chan, val); + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; + ret = sx9500_read_proximity(data, chan, val); + iio_device_release_direct_mode(indio_dev); + return ret; case IIO_CHAN_INFO_SAMP_FREQ: return sx9500_read_samp_freq(data, val, val2); default: |