diff options
Diffstat (limited to 'drivers/iio/industrialio-event.c')
| -rw-r--r-- | drivers/iio/industrialio-event.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c index 910c1f14abd5..db06501b0e61 100644 --- a/drivers/iio/industrialio-event.c +++ b/drivers/iio/industrialio-event.c @@ -285,6 +285,9 @@ 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 +303,9 @@ 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 +324,9 @@ 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 +581,8 @@ 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; |