devm_release_action(9)

💅 devm_release_action(9) — from the Kernel API Manual, bestie 💅

okay so bestie, gather round, because today we're talking about devm_release_action from the Kernel API Manual and honestly? it's giving cleanup era. ✨

🎀 NAME 🎀

devm_release_action — release previously added custom action. that's it, that's the whole vibe. release. previously added. custom action. periodt. 💅

🦋 SYNOPSIS 🦋

void devm_release_action (struct device *dev , void (*action)(void *) ,
void *data );

look at her. iconic signature. no notes. 🔥

🌸 ARGUMENTS 🌸

• dev — the Device that owns the action. she's the main character, she holds the whole thing down 👑
• action — the Function implementing the action. the actual behaviour, the moment, the slay
• data — Pointer to data passed to action implementation. little payload, big energy 🎀

💖 DESCRIPTION 💖

so what does she do? she releases and removes an instance of an action that was previously added by devm_add_action. literally undoing the thing, respectfully. 🫶

⚠️ important: both action and data should match one of the existing entries. like, they gotta line up with something that's actually there, or it's not gonna vibe check. no cap.

🧚 SEE ALSO 🧚

the whole friend group lives in the kernel file ./drivers/base/devres.c, and honestly the guest list is long, so here we go, in order, no skipping:

• __devres_alloc_node(9)
• devres_for_each_res(9)
• devres_free(9)
• devres_add(9)
• devres_find(9)
• devres_get(9)
• devres_remove(9)
• devres_destroy(9)
• devres_release(9)
• devres_release_all(9)
• devres_open_group(9)
• devres_close_group(9)
• devres_remove_group(9)
• devres_release_group(9)
• __devm_add_action(9)
• devm_remove_action_nowarn(9)
• devm_kmalloc(9)
• devm_krealloc(9)
• devm_kstrdup(9)
• devm_kstrdup_const(9)
• devm_kvasprintf(9)
• devm_kasprintf(9)
• devm_kfree(9)
• devm_kmemdup(9)
• devm_kmemdup_const(9)
• devm_get_free_pages(9)
• devm_free_pages(9)
• __devm_alloc_percpu(9)

✨ and that's the whole page, bestie ✨ this lil legend is brought to you by ./drivers/base, dated October 2026, and yes she's still signing off as devm_release_action(9) because she knows exactly who she is 💜🦋🍓