The IIO subsystem is redefining iio_dev->mlock to be used by
the IIO core only for protecting device operating mode changes.
ie. Changes between INDIO_DIRECT_MODE, INDIO_BUFFER_* modes.
In this driver, mlock was being used to protect hardware state
changes. Replace it with a lock in the devices global data.
Signed-off-by: simran singhal <singhalsimran0@xxxxxxxxx>
---
v3:
-Removed new lock to reuse the existing lock
drivers/staging/iio/gyro/adis16060_core.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/iio/gyro/adis16060_core.c b/drivers/staging/iio/gyro/adis16060_core.c
index c9d46e7..602ec53 100644
--- a/drivers/staging/iio/gyro/adis16060_core.c
+++ b/drivers/staging/iio/gyro/adis16060_core.c
@@ -83,11 +83,12 @@ static int adis16060_read_raw(struct iio_dev *indio_dev,
{
u16 tval = 0;
int ret;
+ struct adis16060_state *st = iio_priv(indio_dev);
switch (mask) {
case IIO_CHAN_INFO_RAW:
/* Take the iio_dev status lock */
- mutex_lock(&indio_dev->mlock);
+ mutex_lock(&st->buf_lock);
ret = adis16060_spi_write(indio_dev, chan->address);
if (ret < 0)
goto out_unlock;
@@ -96,7 +97,7 @@ static int adis16060_read_raw(struct iio_dev *indio_dev,
if (ret < 0)
goto out_unlock;
- mutex_unlock(&indio_dev->mlock);
+ mutex_unlock(&st->buf_lock);
*val = tval;
return IIO_VAL_INT;
case IIO_CHAN_INFO_OFFSET:
@@ -112,7 +113,7 @@ static int adis16060_read_raw(struct iio_dev *indio_dev,
return -EINVAL;
out_unlock:
- mutex_unlock(&indio_dev->mlock);
+ mutex_unlock(&st->buf_lock);
return ret;
}
--
2.7.4
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