unregister_reboot_notifier(9)

hiii bestie 💖 this is unregister_reboot_notifier(9) from the Kernel API Manual — manual name folded in right here like a lil bow 🎀. we're unregistering a reboot notifier and it's lowkey iconic.

✨ NAME ✨

• unregister_reboot_notifier — unregister a reboot notifier that was previously registered 💅

🌸 SYNOPSIS 🌸

int unregister_reboot_notifier (struct notifier_block *nb );

🎀 ARGUMENTS 🎀

• nb — the hook to be unregistered 🫶

🦋 DESCRIPTION 🦋

okay so this function unregisters a reboot notifier function that was registered earlier. like, taking the lil hook back out of the reboot-notifier situation. no cap.

it returns zero on success, or -ENOENT on failure 😭. that's the whole mood.

🔥 SEE ALSO 🔥

Kernel file: ./kernel/reboot.c — go look, bestie 👀

• emergency_restart(9)
• register_reboot_notifier(9)
• register_restart_handler(9)
• unregister_restart_handler(9)
• do_kernel_restart(9)
• kernel_restart(9)
• kernel_halt(9)
• register_sys_off_handler(9)
• unregister_sys_off_handler(9)
• devm_register_sys_off_handler(9)
• devm_register_power_off_handler(9)
• devm_register_restart_handler(9)
• register_platform_power_off(9)
• unregister_platform_power_off(9)
• do_kernel_power_off(9)
• kernel_can_power_off(9)
• kernel_power_off(9)
• orderly_poweroff(9)
• orderly_reboot(9)
• hw_failure_emergency_action_func(9)
• hw_failure_emergency_schedule(9)
• __hw_protection_trigger(9)

okay bye bestie 🫶 this page is from ./kernel, dated October 2026, and it's literally unregister_reboot_notifier(9). periodt 💅