[PATCH 2/2 v2] iio: event: NULL-ify IIO device's event_interface ref during unregister

[Alexandru Ardelean]

Though we know that the iio_device_unregister_eventset() call is followed
by the free-ing of the IIO device object, we should not make this
assumption in the iio_device_unregister_eventset() function. It should
allow for the clean unregistering of the event-set, allowing a re-register
should we decide to implement this at some point later.

Signed-off-by: Alexandru Ardelean <alexandru.ardel...@analog.com>
---
 drivers/iio/industrialio-event.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index a85919eb7c4a..99ba657b8568 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -561,4 +561,5 @@ void iio_device_unregister_eventset(struct iio_dev 
*indio_dev)
        iio_free_chan_devattr_list(&ev_int->dev_attr_list);
        kfree(ev_int->group.attrs);
        kfree(ev_int);
+       iio_dev_opaque->event_interface = NULL;
 }
-- 
2.25.1