[PATCH v4 0/3] i3c: Introduce i3c device userspace interface

[Wolfram Sang]

> - Fixed device lifecycle and concurrency:
>   * Switched to cdev_device_add() and cdev_device_del() with an embedded
>     struct device and a release callback, preventing use-after-free and
>     races on driver unbind/detach (incorporating fix from Oleksandr
>     Shulzhenko).
>   * Cleared i3cdev->i3c under xfer_lock on detach so concurrent/subsequent
>     file operations safely return -ENODEV.

I haven't looked at the code (and won't have the time to do so), but if
the above paragraph had not been present, I would have nacked the series
right away. To say it positive: Kudos for working on these issues!