tty_lock identifier - Linux source code next-20260811

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FIXME
- FIXME
  - next-20260811

Defined in 1 files as a prototype:

include/linux/tty.h, line 504 (as a prototype)

Defined in 1 files as a function:

drivers/tty/tty_mutex.c, line 15 (as a function)

Referenced in 8 files:

Smatch caller information:

drivers/tty/tty_io.c __tty_hangup() -> tty_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	1-u64max
BUF_SIZE	0	tty	(-1),1-s32max
BUF_SIZE	0	tty	(-1),1-s32max
CAPPED_DATA	0	tty	1
DATA_SOURCE	0	tty	$0
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2	0	&tty->driver_data->d_lockref.lock

drivers/tty/tty_io.c tty_fasync() -> tty_lock()

Type	Parameter	Key	Value
DATA_SOURCE	0	tty	r file_tty
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL

drivers/tty/tty_io.c tty_init_dev() -> tty_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	4096-ptr_max
PARAM_VALUE	0	tty->atomic_write_lock.dep_map->name	0-255
PARAM_VALUE	0	tty->atomic_write_lock.first_waiter	0
PARAM_VALUE	0	tty->atomic_write_lock.magic	4096-ptr_max
PARAM_VALUE	0	tty->atomic_write_lock.osq.tail.counter	0
PARAM_VALUE	0	tty->atomic_write_lock.owner.counter	0
PARAM_VALUE	0	tty->ctrl.pgrp	0
PARAM_VALUE	0	tty->ctrl.session	0
PARAM_VALUE	0	tty->dev	0,4096-ptr_max
PARAM_VALUE	0	tty->driver	4096-ptr_max
PARAM_VALUE	0	tty->driver->owner	0,4096-ptr_max
PARAM_VALUE	0	tty->kref.refcount.refs.counter	1
PARAM_VALUE	0	tty->ldisc	4096-ptr_max
PARAM_VALUE	0	tty->ldisc->ops	4096-ptr_max
PARAM_VALUE	0	tty->ldisc->tty	4096-ptr_max
PARAM_VALUE	0	tty->ldisc_sem.count.counter	0
PARAM_VALUE	0	tty->ldisc_sem.dep_map->name	0-255
PARAM_VALUE	0	tty->ldisc_sem.read_wait.next	4096-ptr_max
PARAM_VALUE	0	tty->ldisc_sem.read_wait.next->next	4096-ptr_max
PARAM_VALUE	0	tty->ldisc_sem.read_wait.prev	4096-ptr_max
PARAM_VALUE	0	tty->ldisc_sem.read_wait.prev->next	4096-ptr_max
PARAM_VALUE	0	tty->ldisc_sem.read_wait.prev->prev	4096-ptr_max
PARAM_VALUE	0	tty->ldisc_sem.wait_lock.magic	3735899821
PARAM_VALUE	0	tty->ldisc_sem.wait_lock.owner	(-1)
PARAM_VALUE	0	tty->ldisc_sem.wait_lock.owner_cpu	u32max
PARAM_VALUE	0	tty->ldisc_sem.wait_readers	0
PARAM_VALUE	0	tty->ldisc_sem.write_wait.next	4096-ptr_max
PARAM_VALUE	0	tty->ldisc_sem.write_wait.next->next	4096-ptr_max
PARAM_VALUE	0	tty->ldisc_sem.write_wait.prev	4096-ptr_max
PARAM_VALUE	0	tty->ldisc_sem.write_wait.prev->next	4096-ptr_max
PARAM_VALUE	0	tty->ldisc_sem.write_wait.prev->prev	4096-ptr_max
PARAM_VALUE	0	tty->legacy_mutex.dep_map->name	0-255
PARAM_VALUE	0	tty->legacy_mutex.first_waiter	0
PARAM_VALUE	0	tty->legacy_mutex.magic	4096-ptr_max
PARAM_VALUE	0	tty->legacy_mutex.osq.tail.counter	0
PARAM_VALUE	0	tty->legacy_mutex.owner.counter	0
PARAM_VALUE	0	tty->ops->lookup	0,4096-ptr_max
PARAM_VALUE	0	tty->read_wait.head.next	4096-ptr_max
PARAM_VALUE	0	tty->read_wait.head.next->next	4096-ptr_max
PARAM_VALUE	0	tty->read_wait.head.prev	4096-ptr_max
PARAM_VALUE	0	tty->read_wait.head.prev->next	4096-ptr_max
PARAM_VALUE	0	tty->read_wait.head.prev->prev	4096-ptr_max
PARAM_VALUE	0	tty->termios_rwsem.count.counter	0
PARAM_VALUE	0	tty->termios_rwsem.dep_map->name	0-255
PARAM_VALUE	0	tty->termios_rwsem.first_waiter	0
PARAM_VALUE	0	tty->termios_rwsem.magic	4096-ptr_max
PARAM_VALUE	0	tty->termios_rwsem.osq.tail.counter	0
PARAM_VALUE	0	tty->termios_rwsem.owner.counter	0
PARAM_VALUE	0	tty->throttle_mutex.dep_map->name	0-255
PARAM_VALUE	0	tty->throttle_mutex.first_waiter	0
PARAM_VALUE	0	tty->throttle_mutex.magic	4096-ptr_max
PARAM_VALUE	0	tty->throttle_mutex.osq.tail.counter	0
PARAM_VALUE	0	tty->throttle_mutex.owner.counter	0
PARAM_VALUE	0	tty->tty_files.next	4096-ptr_max
PARAM_VALUE	0	tty->tty_files.next->next	4096-ptr_max
PARAM_VALUE	0	tty->tty_files.prev	4096-ptr_max
PARAM_VALUE	0	tty->tty_files.prev->next	4096-ptr_max
PARAM_VALUE	0	tty->tty_files.prev->prev	4096-ptr_max
PARAM_VALUE	0	tty->winsize_mutex.dep_map->name	0-255
PARAM_VALUE	0	tty->winsize_mutex.first_waiter	0
PARAM_VALUE	0	tty->winsize_mutex.magic	4096-ptr_max
PARAM_VALUE	0	tty->winsize_mutex.osq.tail.counter	0
PARAM_VALUE	0	tty->winsize_mutex.owner.counter	0
PARAM_VALUE	0	tty->write_wait.head.next	4096-ptr_max
PARAM_VALUE	0	tty->write_wait.head.next->next	4096-ptr_max
PARAM_VALUE	0	tty->write_wait.head.prev	4096-ptr_max
PARAM_VALUE	0	tty->write_wait.head.prev->next	4096-ptr_max
PARAM_VALUE	0	tty->write_wait.head.prev->prev	4096-ptr_max
BUF_SIZE	0	tty	1816
DATA_SOURCE	0	tty	r alloc_tty_struct
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		_T->lock
HALF_LOCKED2		global &spk_mutex
HALF_LOCKED2		global &tty_mutex

drivers/tty/tty_io.c tty_open_current_tty() -> tty_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	1-u64max
DATA_SOURCE	0	tty	r get_current_tty
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL

drivers/tty/tty_io.c tty_release() -> tty_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	1-u64max
DATA_SOURCE	0	tty	r file_tty
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		_T->lock

drivers/tty/tty_port.c tty_port_block_til_ready() -> tty_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	4096-ptr_max
PARAM_VALUE	0	tty->legacy_mutex.dep_map->name	0-255
PARAM_VALUE	0	tty->legacy_mutex.first_waiter->task->usage.refs.counter	s32min-s32max
PARAM_VALUE	0	tty->link->termios_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	tty->link->termios_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	tty->ops	4096-ptr_max
PARAM_VALUE	0	tty->ops->lookup	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->open	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->set_serial	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->write	0,4096-ptr_max
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->type	0-1
BUF_SIZE	0	tty	s32min,(-1),1-s32max
BUF_SIZE	0	tty	s32min,(-1),1-s32max
BUF_SIZE	0	tty->driver_data	(-1),1-s32max
BUF_SIZE	0	tty->link->driver_data	(-1),1-s32max
CAPPED_DATA	0	tty	1
DATA_SOURCE	0	tty	$1
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&tty->legacy_mutex
HALF_LOCKED2		_T->lock
HALF_LOCKED2		global &spk_mutex

drivers/tty/tty_mutex.c tty_lock_slave() -> tty_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	4096-ptr_max
DATA_SOURCE	0	tty	$0
PARAM_COMPARE	0	tty	!= $0->link
PARAM_COMPARE	0	tty	!= $0->link
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2		&tty->legacy_mutex
HALF_LOCKED2		_T->lock
TYPE_LOCK		(struct tty_struct)->legacy_mutex

drivers/tty/serdev/serdev-ttyport.c ttyport_close() -> tty_lock()

Type	Parameter	Key	Value
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		&ctrl->lock
HALF_LOCKED2		&data->serdev_mutex
HALF_LOCKED2		&gdev->rwsem
HALF_LOCKED2		&hdev->req_lock
HALF_LOCKED2		&nfc_dev->dev.mutex

drivers/tty/tty_jobctrl.c disassociate_ctty() -> tty_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	1-u64max
PARAM_VALUE	0	tty->ops->close	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->hangup	0,4096-ptr_max
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->type	0-1
DATA_SOURCE	0	tty	r get_current_tty
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL

drivers/tty/tty_jobctrl.c tiocsctty() -> tty_lock()

Type	Parameter	Key	Value
DATA_SOURCE	0	tty	$0
NOCHECK_CALL

drivers/accessibility/speakup/spk_ttyio.c spk_ttyio_initialise_ldisc() -> tty_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	4096-ptr_max
PARAM_VALUE	0	tty->legacy_mutex.dep_map->name	0-255
PARAM_VALUE	0	tty->legacy_mutex.first_waiter->task->usage.refs.counter	s32min-s32max
PARAM_VALUE	0	tty->ops->ldisc_ok	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->open	4096-ptr_max
PARAM_VALUE	0	tty->ops->set_ldisc	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->set_termios	0,4096-ptr_max
PARAM_VALUE	0	tty->termios_rwsem.dep_map->name	0-255
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->handoff_set	1
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->list.next	2212933610777083904,2624917664208203776
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->list.prev	2212933610777083904,2624917664208203776
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->type	0-1
BUF_SIZE	0	tty	(-1),1816
BUF_SIZE	0	tty	(-1),1816
DATA_SOURCE	0	tty	r tty_kopen_exclusive
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2		global &spk_mutex

drivers/accessibility/speakup/spk_ttyio.c spk_ttyio_release() -> tty_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	1-u64max
BUF_SIZE	0	tty	1816
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
LOCK2		global &spk_mutex

drivers/tty/tty_ldisc.c tty_set_ldisc() -> tty_lock()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	4096-ptr_max
PARAM_VALUE	0	tty->ops	4096-ptr_max
PARAM_VALUE	0	tty->ops->open	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->set_termios	0,4096-ptr_max
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->type	0-1
BUF_SIZE	0	tty	(-1),1816
BUF_SIZE	0	tty	(-1),1816
CAPPED_DATA	0	tty	1
DATA_SOURCE	0	tty	$0
RX_PATH
TASK_NOT_RUNNING
NOCHECK_CALL
HALF_LOCKED2		global &speakup_tty_mutex
HALF_LOCKED2		global &spk_mutex