diff options
| -rw-r--r-- | drivers/iio/industrialio-trigger.c | 2 | ||||
| -rw-r--r-- | include/linux/iio/trigger.h | 5 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c index d89bf90650d5..26d610d4cbb8 100644 --- a/drivers/iio/industrialio-trigger.c +++ b/drivers/iio/industrialio-trigger.c @@ -576,6 +576,8 @@ struct iio_trigger *viio_trigger_alloc(struct device *parent, if (trig->name == NULL) goto free_descs; + INIT_LIST_HEAD(&trig->list); + trig->subirq_chip.name = trig->name; trig->subirq_chip.irq_mask = &iio_trig_subirqmask; trig->subirq_chip.irq_unmask = &iio_trig_subirqunmask; diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h index 4c69b144677b..03b1d6863436 100644 --- a/include/linux/iio/trigger.h +++ b/include/linux/iio/trigger.h @@ -93,6 +93,11 @@ static inline void iio_trigger_put(struct iio_trigger *trig) static inline struct iio_trigger *iio_trigger_get(struct iio_trigger *trig) { get_device(&trig->dev); + + WARN_ONCE(list_empty(&trig->list), + "Getting non-registered iio trigger %s is prohibited\n", + trig->name); + __module_get(trig->owner); return trig; |