devm_devfreq...ter_notifier(9)

📦 version 7.3.1, in nixpkgs unstable

💅 devm_devfreq...ter_notifier(9)

ok so this is a page straight outta the Kernel API Manual and honestly? it's giving "small but mighty." buckle up bestie, we're unregistering a notifier the resource-managed way ✨

🌸 NAME 🌸

devm_devfreq_unregister_notifier -

no like. that's actually it. the description is literally empty 😭 the kernel devs said "the name says enough" and honestly? respect. main character energy.

✨ SYNOPSIS ✨

void devm_devfreq_unregister_notifier (struct device *dev , struct
devfreq *devfreq , struct notifier_block *nb , unsigned int list );

it returns void, meaning it hands you nothing back. no return value, no vibes check, it just does the thing and dips 🫶

🎀 ARGUMENTS 🎀

four args, all of them lowkey essential, let's go one by one:

  • dev — the devfreq user device. (it's the parent of devfreq, iykyk — think of it as the mom friend keeping everyone together 👑)
  • devfreq — the devfreq object itself. the actual thing we're working with 💖
  • nb — the notifier block that's getting unregistered. it's literally in the name, bestie.
  • list — here you pass DEVFREQ_TRANSITION_NOTIFIER. that's the value, that's the whole assignment. slay ✨

🦋 DESCRIPTION 🦋

  • Resource-managed devfreq_unregister_notifier

that's the bullet. that's the whole description. it's a one-liner and it ate 💅 the "resource-managed" part is the whole point: this is the devm-flavored version, so the cleanup is handled for you like a good friend who remembers your charger 🌈

⭐ SEE ALSO ⭐

so there's a whole friend group here, and they all live in the kernel file ./drivers/devfreq/devfreq.c 🧚 — go say hi to:

like, that's the whole group chat right there 🔥 and yes, devm_devfreq_register_notifier(9) is the register-side twin — the way that they're literally a matched set 😭💜

ngl if you're looking for the function that does the registering, it's right there at the bottom of the list. we love a symmetrical moment.

anyway that's the page!! short, sweet, and completely carried by the resource-managed concept 🍓

sign-off time 💌 this lil beauty lives in ./drivers/devfreq, and the date on it is October 2026 — so yeah, she's from the future, no cap 👑💀

periodt. 💅✨

📦 where this page comes from