power_suppl...em_batteries(9)

🌸 power_suppl...em_batteries(9) 🌸

okay bestie so you're in the Kernel API Manual and the function we're talking about is literally power_supply_put_system_batteries — say it with me, it's a mouthful, i know 😭 this is the cleanup half of the system-battery saga, the "ok we're done here, go home" twin 🎀

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✨ NAME ✨

power_supply_put_system_batteries — the cleanup baddie that frees all the resources allocated by power_supply_get_system_batteries(). it's giving responsible queen energy 💅 you grabbed the references, now you put them back, periodt.

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🦋 SYNOPSIS 🦋

void power_supply_put_system_batteries (struct power_supply **psys , int count );

returning void — no cap, this one tells you nothing. it just does the thing and dips 🙈

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💖 ARGUMENTS 💖

• psys — array of power supply references to release and free. yes bestie, both 😌 you hand it the array, it releases the refs and frees them. don't come back looking for them.
• count — number of elements in the array. literally just how many things are in psys, so it knows when to stop swiping 🫶

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🌈 SEE ALSO 🌈

• Kernel file: ./drivers/power/supply/power_supply_core.c — the source, the origin story, the mothership 👑

and the whole friend group, fr fr:

• power_supply_get_by_name(9)
• power_supply_get_system_batteries(9)
• power_supply_put(9)
• power_supply_get_by_reference(9)
• devm_power_supply_get_by_reference(9)
• power_supply_temp2resist_simple(9)
• power_supply_vbat2ri(9)
• power_supply_ocv2cap_simple(9)
• power_supply_get_property_direct(9)
• power_supply_set_property_direct(9)
• power_supply_register(9)
• devm_power_supply_register(9)
• power_supply_unregister(9)

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lowkey the most important link in that chain is power_supply_get_system_batteries(9) — that's the one that made the mess this function cleans up. they're a package deal, iykyk 💀

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and that's the whole page, bestie 💜 no leaks, no dangling refs, we stan a clean teardown ⭐

sign-off szn: this little gem lives over in ./drivers/power/supply and it's dated October 2026 — iconic, timeless, slay 🎀✨