drm_dev_unregister(9)

💅 drm_dev_unregister(9) 💅

okay bestie, this page is from the Kernel API Manual, and it's literally all about drm_dev_unregister 💖 no cap, let's get into the vibe.

💖 NAME 💖

drm_dev_unregister — Unregister DRM device ✨

🌸 SYNOPSIS 🌸

void drm_dev_unregister (struct drm_device *dev );

🎀 ARGUMENTS 🎀

• dev — the device to unregister 🫶

🦋 DESCRIPTION 🦋

So drm_dev_unregister unregisters the DRM device from the system. It does the reverse of drm_dev_register, but — important — it does not deallocate the device. 🎀

The caller must call drm_dev_put to drop their final reference, unless it is managed with devres (as devices allocated with devm_drm_dev_alloc are), in which case there is already an unwind action registered. 💫

A special form of unregistering for hotpluggable devices is drm_dev_unplug, which can be called while there are still open users of dev. 👀

✨ This should be called first in the device teardown code to make sure userspace can't access the device instance any more. periodt. 💅

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/drm_drv.c
• driver instance overview(9)
• drm_put_dev(9)
• drm_dev_enter(9)
• drm_dev_exit(9)
• drm_dev_unplug(9)
• drm_dev_set_dma_dev(9)
• drm_dev_wedged_event(9)
• component helper usage recommendations(9)
• __drm_dev_alloc(9)
• drm_dev_alloc(9)
• drm_dev_get(9)
• drm_dev_put(9)
• drmm_cgroup_register_region(9)
• drm_dev_register(9)

💖 okay that's the whole page bestie — footer vibes: source/version ./drivers/gpu/drm, date October 2026 💖