drm_mode_object_unregister(9)

💅 drm_mode_object_unregister (9) — Kernel API Manual, bestie edition 🎀

okay so this is a page from the Kernel API Manual, section 9, all about drm_mode_object_unregister 💖

---

✨ NAME ✨

drm_mode_object_unregister — free a modeset identifier 🦋

---

🌸 SYNOPSIS 🌸

void drm_mode_object_unregister (struct drm_device *dev , struct
       drm_mode_object *object );

like, that's the whole signature. two args, no return, very demure ✨

---

🧚 ARGUMENTS 🧚

• dev — the DRM device 👑
• object — the object to free 🫶

---

💀 DESCRIPTION 💀

so what it does is it frees the id from dev's unique identifier pool 🎀 literally just yeets that id back out of the pool, iconic behavior.

and here's the slay part: this function can be called multiple times, and it guards against multiple removals 🙈 so you can't double-nuke it, she protects herself.

⚠️ but okay listen, important: these modeset identifiers are _not_ reference counted. like, at all. so don't use this for reference counted modeset objects like framebuffers 😭 that's a whole different vibe, iykyk.

---

🔥 SEE ALSO 🔥

kernel file ./drivers/gpu/drm/drm_mode_object.c plus the whole friend group 💅:

• drm_mode_object_add(9)
• drm_mode_object_lease_required(9)
• drm_mode_object_find(9)
• drm_mode_object_put(9)
• drm_mode_object_get(9)
• drm_object_attach_property(9)
• drm_object_property_set_value(9)
• drm_object_property_get_value(9)
• drm_object_property_get_default_value(9)
• drm_object_immutable_property_get_value(9)
• drm_mode_obj_get_properties_ioctl(9)

---

and that's the page!! 🍓 this one lives in ./drivers/gpu/drm, it's dated October 2026, and it's from the Kernel API Manual, section 9. mwah, go free those identifiers responsibly bestie 💜✨🎀