attribute_c...trigger_safe(9)

💅 attribute_container_device_trigger_safe — Kernel API Manual (section 9)

okay so bestie, buckle in, because this one is genuinely a safety girlie and we stan her for it 🎀

---

✨ NAME ✨

attribute_container_device_trigger_safe — run a trigger for every matching classdev, or make the whole thing fail for all of them. no halfsies. it's giving all-or-nothing energy 👑

---

🦋 SYNOPSIS 🦋

int attribute_container_device_trigger_safe (struct device *dev , int
(*fn)(struct attribute_container *, struct device *, struct device *) ,
int (*undo)(struct attribute_container *, struct device *, struct device
*) );

like yes, those function pointers are lowkey a mouthful, but look at her, she's iconic 💜

---

🌸 ARGUMENTS 🌸

• dev — the generic device you're running the trigger for. the main character of this whole operation ✨
• fn — the function to execute for each classdev. this is the do-the-thing callback, fr fr.
• undo — a function to undo the work that was previously done, in case of error. she's the cleanup crew, the ride-or-die, the "we can fix this" bestie 🫶

---

💖 DESCRIPTION 💖

okay so here's the tea: this function is the safe version of attribute_container_device_trigger. 🎀

It stops on the very first error, and then it undoes the partial work that had been done on the previous classdev. so nothing's just left sitting around in a weird half-finished state, no ma'am 🙈

and the guarantee? it's guaranteed that either they all succeeded, or none of them succeeded. periodt. atomic queen behaviour, no cap 💅

ngl, that all-or-nothing guarantee is the whole point of picking this one over the plain trigger — if you want the risky vibe, that's a different function, iykyk 😭

---

🧚 SEE ALSO 🧚

• Kernel file ./drivers/base/attribute_container.c
• attribute_container_classdev_to_container(9)
• attribute_container_register(9)
• attribute_container_unregister(9)
• attribute_container_add_device(9)
• attribute_container_remove_device(9)
• attribute_container_device_trigger(9)
• attribute_container_add_attrs(9)
• attribute_container_add_class_device(9)
• attribute_container_remove_attrs(9)
• attribute_container_class_device_del(9)
• attribute_container_find_class_device(9)

---

and that's the whole page bestie, you ate that 💖✨

shoutout to ./drivers/base for housing all this goodness, and this little cutie is dated October 2026 — slay 🌈⭐