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authorAlexandru Ardelean <alexandru.ardelean@analog.com>2019-09-20 11:35:13 +0300
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2019-10-07 21:31:19 +0100
commit3cfd6464fe23deb45bb688df66184b3f32fefc16 (patch)
treeb66e5f8050d0971967a0f8e4ce40556c0bcef6c4 /drivers/iio/proximity
parent2c3d0c9ffd24d9b4c62c5dfb2104695a614be28c (diff)
iio: proximity: sx9500: fix iio_triggered_buffer_{predisable,postenable} positions
The iio_triggered_buffer_predisable() should be called last, to detach the poll func after the devices has been suspended. This change re-organizes things a bit so that the postenable & predisable are symmetrical. It also converts the preenable() to a postenable(). Not stable material as there is no known problem with the current code, it's just not consistent with the form we would like all the IIO drivers to adopt so as to allow subsystem wide changes. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/proximity')
-rw-r--r--drivers/iio/proximity/sx9500.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/iio/proximity/sx9500.c b/drivers/iio/proximity/sx9500.c
index 612f79c53cfc..287d288e40c2 100644
--- a/drivers/iio/proximity/sx9500.c
+++ b/drivers/iio/proximity/sx9500.c
@@ -675,11 +675,15 @@ out:
return IRQ_HANDLED;
}
-static int sx9500_buffer_preenable(struct iio_dev *indio_dev)
+static int sx9500_buffer_postenable(struct iio_dev *indio_dev)
{
struct sx9500_data *data = iio_priv(indio_dev);
int ret = 0, i;
+ ret = iio_triggered_buffer_postenable(indio_dev);
+ if (ret)
+ return ret;
+
mutex_lock(&data->mutex);
for (i = 0; i < SX9500_NUM_CHANNELS; i++)
@@ -696,6 +700,9 @@ static int sx9500_buffer_preenable(struct iio_dev *indio_dev)
mutex_unlock(&data->mutex);
+ if (ret)
+ iio_triggered_buffer_predisable(indio_dev);
+
return ret;
}
@@ -704,8 +711,6 @@ static int sx9500_buffer_predisable(struct iio_dev *indio_dev)
struct sx9500_data *data = iio_priv(indio_dev);
int ret = 0, i;
- iio_triggered_buffer_predisable(indio_dev);
-
mutex_lock(&data->mutex);
for (i = 0; i < SX9500_NUM_CHANNELS; i++)
@@ -722,12 +727,13 @@ static int sx9500_buffer_predisable(struct iio_dev *indio_dev)
mutex_unlock(&data->mutex);
+ iio_triggered_buffer_predisable(indio_dev);
+
return ret;
}
static const struct iio_buffer_setup_ops sx9500_buffer_setup_ops = {
- .preenable = sx9500_buffer_preenable,
- .postenable = iio_triggered_buffer_postenable,
+ .postenable = sx9500_buffer_postenable,
.predisable = sx9500_buffer_predisable,
};