idle_inject_unregister(9)

🦋 idle_inject_unregister(9) — the kernel API manual, bestie edition 🦋

okay so this one is from the kernel API manual, section 9, and it's literally the cleanup girlie of the idle injection family 💅

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✨ NAME ✨

idle_inject_unregister — unregister idle injection control device 🎀

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🌸 SYNOPSIS 🌸

void idle_inject_unregister (struct idle_inject_device *ii_dev );

like, that's the whole call. no return value, no drama, just vibes and a pointer ✨

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💖 ARGUMENTS 💖

• ii_dev — the idle injection control device you wanna unregister 🫶 that's the one getting sent home.

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👑 DESCRIPTION 👑

okay so bestie, listen 👂 — this function does three whole things and she does them in order:

1. it stops idle injection for the given control device 🛑
2. it unregisters its kthreads 🧵✂️
3. it frees the memory allocated when that device was created 🗑️✨

so yeah, it's giving full cleanup, main character energy, nothing left behind 💀 no cap.

ngl this is a destructive-ish operation in spirit — it's tearing down the device's kthreads and freeing that device's memory, so this is not a "call it twice for fun" situation 😭 it's the inverse of setting the thing up, periodt.

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/powercap/idle_inject.c
• struct idle_inject_thread(9)
• struct idle_inject_device(9)
• idle_inject_wakeup(9)
• idle_inject_timer_fn(9)
• idle_inject_fn(9)
• idle_inject_set_duration(9)
• idle_inject_get_duration(9)
• idle_inject_set_latency(9)
• idle_inject_start(9)
• idle_inject_stop(9)
• idle_inject_setup(9)
• idle_inject_should_run(9)
• idle_inject_register_full(9)
• idle_inject_register(9)

like the whole friend group fr fr 🫶 go read them all, iykyk 💜

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this page lives in ./drivers/powercap, dated October 2026, and it's idle_inject_unregister(9) — mwah, slay, go free that memory bestie 💅✨🎀