devres_release_group(9)
๐ devres_release_group(9) ๐
okay so bestie, welcome to the Kernel API Manual โ yes that's the manual we're in, and yes you're about to become a devres group release girlie. let's go ๐
โจ NAME โจ
devres_release_group โ release resources in a devres group. that's it, that's the whole vibe ๐ซถ
๐ธ SYNOPSIS ๐ธ
int devres_release_group (struct device *dev , void *id );
๐ฆ ARGUMENTS ๐ฆ
devโ the device you're releasing the group for. your main character device, basically ๐idโ the ID of the target group. and good news: it can beNULL๐ซถ
๐ DESCRIPTION ๐
so here's the tea: this bad boy releases all the resources in the group identified by id. iconic behaviour, no notes.
if id is NULL? no stress โ the latest open group gets selected instead. it's giving "most recent one, obviously" ๐
and the selected group? it gets removed. and not just it โ the groups properly nested inside the selected group get removed too. the whole squad goes down together, fr fr. ๐ฅ
โญ RETURN โญ
it returns the number of released non-group resources. that's the number, bestie โ count 'em ๐งฎโจ
๐ SEE ALSO ๐
the whole friend group lives in the kernel file ./drivers/base/devres.c, and honestly you should meet all of them:
__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)__devm_add_action(9)devm_remove_action_nowarn(9)devm_release_action(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)
like, the entire devres cinematic universe. iykyk ๐
mwah ๐ that's the page! brought to you by ./drivers/base and dated October 2026 โ stan the kernel, stay hydrated, and remember: that group is not gonna release itself. periodt. ๐๐งโโ๏ธ๐
๐ฆ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- ๐ girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms