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Subject[PATCH] Staging: iio: ade7758: Replace mlock with buf_lock
Date
iio_dev->mlock is to be used only by the IIO core for protecting
device mode changes between INDIO_DIRECT and INDIO_BUFFER.

This patch replaces the use of mlock with the already established
buf_lock mutex.

Signed-off-by: Shreeya Patel <shreeya.patel23498@gmail.com>
---
drivers/staging/iio/meter/ade7758_core.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
index 7b7ffe5..1a866cc 100644
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ b/drivers/staging/iio/meter/ade7758_core.c
@@ -523,12 +523,13 @@ static int ade7758_read_raw(struct iio_dev *indio_dev,
long mask)
{
int ret;
+ struct ade7758_state *st = iio_priv(indio_dev);

switch (mask) {
case IIO_CHAN_INFO_SAMP_FREQ:
- mutex_lock(&indio_dev->mlock);
+ mutex_lock(&st->buf_lock);
ret = ade7758_read_samp_freq(&indio_dev->dev, val);
- mutex_unlock(&indio_dev->mlock);
+ mutex_unlock(&st->buf_lock);
return ret;
default:
return -EINVAL;
@@ -542,14 +543,15 @@ static int ade7758_write_raw(struct iio_dev *indio_dev,
int val, int val2, long mask)
{
int ret;
+ struct ade7758_state *st = iio_priv(indio_dev);

switch (mask) {
case IIO_CHAN_INFO_SAMP_FREQ:
if (val2)
return -EINVAL;
- mutex_lock(&indio_dev->mlock);
+ mutex_lock(&st->buf_lock);
ret = ade7758_write_samp_freq(&indio_dev->dev, val);
- mutex_unlock(&indio_dev->mlock);
+ mutex_unlock(&st->buf_lock);
return ret;
default:
return -EINVAL;
--
2.7.4
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