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path: root/drivers/iio/industrialio-event.c
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Diffstat (limited to 'drivers/iio/industrialio-event.c')
-rw-r--r--drivers/iio/industrialio-event.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 910c1f14abd5..06295cfc2da8 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -232,6 +232,7 @@ static const char * const iio_ev_type_text[] = {
[IIO_EV_TYPE_CHANGE] = "change",
[IIO_EV_TYPE_MAG_REFERENCED] = "mag_referenced",
[IIO_EV_TYPE_GESTURE] = "gesture",
+ [IIO_EV_TYPE_FAULT] = "fault",
};
static const char * const iio_ev_dir_text[] = {
@@ -240,6 +241,7 @@ static const char * const iio_ev_dir_text[] = {
[IIO_EV_DIR_FALLING] = "falling",
[IIO_EV_DIR_SINGLETAP] = "singletap",
[IIO_EV_DIR_DOUBLETAP] = "doubletap",
+ [IIO_EV_DIR_FAULT_OPENWIRE] = "openwire",
};
static const char * const iio_ev_info_text[] = {
@@ -285,6 +287,9 @@ static ssize_t iio_ev_state_store(struct device *dev,
if (ret < 0)
return ret;
+ if (!indio_dev->info->write_event_config)
+ return -EINVAL;
+
ret = indio_dev->info->write_event_config(indio_dev,
this_attr->c, iio_ev_attr_type(this_attr),
iio_ev_attr_dir(this_attr), val);
@@ -300,6 +305,9 @@ static ssize_t iio_ev_state_show(struct device *dev,
struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
int val;
+ if (!indio_dev->info->read_event_config)
+ return -EINVAL;
+
val = indio_dev->info->read_event_config(indio_dev,
this_attr->c, iio_ev_attr_type(this_attr),
iio_ev_attr_dir(this_attr));
@@ -318,6 +326,9 @@ static ssize_t iio_ev_value_show(struct device *dev,
int val, val2, val_arr[2];
int ret;
+ if (!indio_dev->info->read_event_value)
+ return -EINVAL;
+
ret = indio_dev->info->read_event_value(indio_dev,
this_attr->c, iio_ev_attr_type(this_attr),
iio_ev_attr_dir(this_attr), iio_ev_attr_info(this_attr),
@@ -572,8 +583,8 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
iio_check_for_dynamic_events(indio_dev)))
return 0;
- ev_int = kzalloc(sizeof(struct iio_event_interface), GFP_KERNEL);
- if (ev_int == NULL)
+ ev_int = kzalloc(sizeof(*ev_int), GFP_KERNEL);
+ if (!ev_int)
return -ENOMEM;
iio_dev_opaque->event_interface = ev_int;