subsys_dev_iter_exit(9)

💅 subsys_dev_iter_exit(9)

okay so this one's from the Kernel API Manual and it is literally the shortest little cleanup babe you'll ever meet — but bestie, skipping her is a crime. 🎀

---

✨ NAME ✨

subsys_dev_iter_exit — finish iteration 🏁

---

🌸 SYNOPSIS 🌸

void subsys_dev_iter_exit (struct subsys_dev_iter *iter );

---

🦋 ARGUMENTS 🦋

• iter — the subsys iterator you're finishing up. like, the one you've been looping with. that one. 🫶

---

💖 DESCRIPTION 💖

So you're done iterating. Maybe you ran all the way to the end, maybe you bailed early — doesn't matter, bestie, the vibe is the same.

Finish an iteration. Always call this function after iteration is complete, whether the iteration ran till the end or not. no cap, always. not "if I feel like it", not "only when I hit the end". always. periodt. 👑

fr fr though — this is the clean-up step, and the manpage says always in bold-energy. don't be the person who leaves their iterator hanging. 💀

---

⭐ SEE ALSO ⭐

Kernel file ./drivers/base/bus.c — and the whole friend group:

• bus_to_subsys(9)
• bus_for_each_dev(9)
• bus_find_device(9)
• bus_for_each_drv(9)
• bus_add_device(9)
• bus_probe_device(9)
• bus_remove_device(9)
• bus_add_driver(9)
• bus_remove_driver(9)
• bus_rescan_devices(9)
• device_reprobe(9)
• bus_register(9)
• bus_unregister(9)
• subsys_dev_iter_init(9)
• subsys_dev_iter_next(9)
• subsys_system_register(9)
• subsys_virtual_register(9)
• driver_find(9)
• bus_get_dev_root(9)

---

okay that's the whole page, she's tiny but iconic ✨ this one lives in ./drivers/base, dated October 2026, and the page itself is subsys_dev_iter_exit(9) — go finish your iteration bestie, mwah 💜🌷