Messages in this thread | | | Date | Wed, 9 Jun 2021 15:27:35 +0300 | From | Sakari Ailus <> | Subject | Re: [PATCH 2/2] media: v4l2-async: Make subdev notifier cleanup conditional |
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Hi Paul,
On Wed, Jun 09, 2021 at 01:54:57PM +0200, Paul Kocialkowski wrote: > A dedicated subdev notified is registered when using the helper > dedicated to sensors (v4l2_async_register_subdev_sensor_common), > but this is not the case when a driver uses v4l2_async_register_subdev > directly.
Is this a problem?
The notifier unregistration and cleanup functions should be safe to call on a notifier that's not been initialised or registered. The same goes for kfree with NULL argument.
-- Kind regards,
Sakari Ailus
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