Re: [PATCH v6] HID: pulsar: add driver for Pulsar gaming mice

> - [Critical] The `drvdata` structure is freed before the battery power supply is unregistered, leading to a Use-After-Free vulnerability if userspace reads battery properties during device removal.

`devres_release_all` releases all nodes in LIFO order.
`devm_kzalloc`  and `devm_power_supply_register` are called on the same device, so the power supply is unregistered first.

> - [Medium] The fallback logic for non-Pulsar devices during battery initialization is bypassed on command timeout. 

The dongle answers commands even while the mouse is off.
So if the command times out there is a protocol missmatch or the device is malfunctioning.
Not registering a battery in this case is the right behaviour.

> - [Low] Syntax error in the `model` buffer size will prevent compilation.

It compiles with gcc 16.1.1.