release_one_tty(9)

💖 NAME 💖

okay so bestie, this is release_one_tty — the Kernel API Manual girlie whose whole job is releasing tty structure memory ✨ like she literally frees the memory, that's the gig 🫶

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🌸 SYNOPSIS 🌸

void release_one_tty (struct work_struct *work );

that's the whole signature, no cap — she's void, she returns nothing, she's humble like that 💅

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🎀 ARGUMENTS 🎀

• work — the work of the tty we are obliterating 💀 that's it, that's the argument, that's the vibe

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🦋 DESCRIPTION 🦋

so what she actually does, right? She releases the memory associated with a tty structure, and she clears out the driver table slots. Cleanup queen 👑 This function gets called when a device is no longer in use — like the device has left the chat 🙈 — and it also gets called when setup of a device fails, which honestly is so real of her, she shows up for the messy moments too 😭

Locking: she takes the file list lock internally when she's working on the list of ttys that the driver keeps. Not you doing it, her doing it. She handles her own business 🔒 periodt.

And the reason this method gets called from a work queue? So that the driver private cleanup ops can sleep — which is needed for USB at least. yes bestie, sleep is a whole thing here, it's giving "let the cleanup ops take a nap" 😴🧚

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⭐ SEE ALSO ⭐

Kernel file ./drivers/tty/tty_io.c — that's the home base, the main character file fr fr 💜

and now the extended friend group, the whole group chat of cross-references, iykyk:

free_tty_struct(9), tty_free_file(9), tty_name(9), get_tty_driver(9), tty_dev_name_to_number(9), tty_find_polling_driver(9), tty_wakeup(9), tty_release_redirect(9), __tty_hangup(9), tty_hangup(9), tty_vhangup(9), tty_vhangup_self(9), tty_vhangup_session(9), tty_hung_up_p(9), stop_tty(9), start_tty(9), tty_read(9), tty_write(9), tty_send_xchar(9), pty_line_name(9), tty_line_name(9), tty_driver_lookup_tty(9), tty_init_termios(9), tty_standard_install(9), tty_driver_install_tty(9), tty_driver_remove_tty(9), tty_reopen(9), tty_init_dev(9), tty_save_termios(9), tty_flush_works(9), tty_kref_put(9), release_tty(9), tty_release_checks(9), tty_kclose(9), tty_release_struct(9), tty_release(9), tty_open_current_tty(9), tty_lookup_driver(9), tty_kopen_exclusive(9), tty_kopen_shared(9), tty_open_by_driver(9), tty_open(9), tty_poll(9), tiocsti(9), tiocgwinsz(9), tty_do_resize(9), tiocswinsz(9), tioccons(9), tiocsetd(9), tiocgetd(9), send_break(9), tty_get_tiocm(9), tty_tiocmget(9), tty_tiocmset(9), tty_get_icount(9), alloc_tty_struct(9), tty_put_char(9), tty_register_device(9), tty_register_device_attr(9), tty_unregister_device(9), __tty_alloc_driver(9), tty_driver_kref_put(9), tty_register_driver(9), tty_unregister_driver(9)

all sixty-four of them, every single one, I counted twice bestie 🍓

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that's the page!! anyway this little icon of a function lives in ./drivers/tty and the version stamp on her is October 2026 — so she's dated, she's sourced, she's flawless, mwah 💋🎀

release_one_tty(9) — slay, go free that memory, periodt 🌈👑