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authorAlexandru Ardelean <alexandru.ardelean@analog.com>2020-09-21 13:31:56 +0300
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2020-09-29 17:27:05 +0100
commita3598d14dc571b484529956b33f3fdd9d2b2b97e (patch)
tree5fb7650fa3c7b502ce27d715bac550df582cf0e1 /drivers/iio
parentiio: event: use short-hand variable in iio_device_{un}register_eventset functions (diff)
downloadlinux-dev-a3598d14dc571b484529956b33f3fdd9d2b2b97e.tar.xz
linux-dev-a3598d14dc571b484529956b33f3fdd9d2b2b97e.zip
iio: event: NULL-ify IIO device's event_interface ref during unregister
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.ardelean@analog.com> Link: https://lore.kernel.org/r/20200921103156.194748-2-alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/industrialio-event.c1
1 files changed, 1 insertions, 0 deletions
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;
}