tty_ldisc_ref identifier - Linux source code next-20260811

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linux

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FIXME
- FIXME
  - next-20260811

Documented in 1 files:

drivers/tty/tty_ldisc.c, line 251

Defined in 1 files as a prototype:

include/linux/tty_ldisc.h, line 278 (as a prototype)

Defined in 1 files as a function:

drivers/tty/tty_ldisc.c, line 259 (as a function)

Referenced in 7 files:

Smatch caller information:

drivers/tty/tty_io.c tty_wakeup() -> tty_ldisc_ref()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	4096-ptr_max
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->break_ctl	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->chars_in_buffer	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->cleanup	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->close	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->compat_ioctl	0,1607379221601308672,5008286898947497984,6364353445524312064
PARAM_VALUE	0	tty->ops->flush_buffer	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->flush_chars	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->get_icount	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->get_serial	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->hangup	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->install	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->ioctl	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->ldisc_ok	0,4096-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->poll_get_char	0,4172584550987694080,8810588628199956480
PARAM_VALUE	0	tty->ops->poll_init	0,1455831725284642816,7005422354281586688
PARAM_VALUE	0	tty->ops->poll_put_char	0,317088091350007808,4944462343817641984
PARAM_VALUE	0	tty->ops->proc_show	0,356236415985979392,5729891321464528896,9011853526131630080
PARAM_VALUE	0	tty->ops->put_char	0,46317935159074816,946511232463630336,5234932001147445248,6499862429192966144,7134038662404317184
PARAM_VALUE	0	tty->ops->remove	0,384629141214146560,3489019467251376128
PARAM_VALUE	0	tty->ops->resize	0,2815742157479378944,7598537204212207616
PARAM_VALUE	0	tty->ops->send_xchar	0,2462859047340216320,4708555404674125824,8710759130855649280
PARAM_VALUE	0	tty->ops->set_ldisc	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->set_serial	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->set_termios	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->show_fdinfo	0,5525676422896762880
PARAM_VALUE	0	tty->ops->shutdown	0,3518621193109893120,5469287042401259520
PARAM_VALUE	0	tty->ops->start	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->stop	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->throttle	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->tiocmget	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->tiocmset	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->unthrottle	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->wait_until_sent	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->write	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->write_room	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),1-s32max
BUF_SIZE	0	tty	(-1),1-s32max
BUF_SIZE	0	tty->disc_data	(-1),16,480,520,9144
BUF_SIZE	0	tty->driver_data	(-1),1-s32max
BUF_SIZE	0	tty->ldisc	(-1),4,16,24,64,168-s32max
BUF_SIZE	0	tty->port->itty	(-1),8-s32max
BUF_SIZE	0	tty->write_buf	(-1),1024-65536
DATA_SOURCE	0	tty	$0
STR_LEN	0	tty	(-1)-18
STR_LEN	0	tty	(-1)-18
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	tty->termios.c_cflag	0-u32max[c]
USER_DATA	0	tty->termios.c_iflag	0-u32max[c]
USER_DATA	0	tty->termios.c_ispeed	0-u32max
USER_DATA	0	tty->termios.c_lflag	0-u32max[c]
USER_DATA	0	tty->termios.c_line	0-255
USER_DATA	0	tty->termios.c_oflag	0-u32max[c]
USER_DATA	0	tty->termios.c_ospeed	0-u32max
USER_DATA	0	tty->write_cnt	1025-u16max[c]
NO_OVERFLOW_SIMPLE	0	tty->driver_data->d_fsdata
NO_OVERFLOW_SIMPLE	0	tty->driver_data->d_fsdata->d_fsdata
NO_OVERFLOW_SIMPLE	0	tty->name
USER_PTR	0	tty->disc_data->priv->rx_skb->data
HALF_LOCKED2		&hp->lock
HALF_LOCKED2		&port->port_lock
HALF_LOCKED2		&port->slock
HALF_LOCKED2		&tty->ldisc_sem
HALF_LOCKED2		flags
HALF_LOCKED2		global &moxa_lock
HALF_LOCKED2		irq
HALF_LOCKED2	0	&tty->atomic_write_lock
HALF_LOCKED2	0	&tty->driver_data->d_lockref.lock
HALF_LOCKED2	0	&tty->flow.lock
HALF_LOCKED2	0	&tty->ldisc_sem
HALF_LOCKED2	0	&tty->legacy_mutex
HALF_LOCKED2	0	&tty->port->buf.lock
HALF_LOCKED2	0	&tty->termios_rwsem

drivers/tty/tty_port.c tty_port_default_lookahead_buf() -> tty_ldisc_ref()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	1-u64max
LOCK2		&buf->lock
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct tty_bufhead)->lock

drivers/tty/tty_port.c tty_port_default_receive_buf() -> tty_ldisc_ref()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	1-u64max
LOCK2		&buf->lock
HALF_LOCKED2		&pool->lock
TYPE_LOCK		(struct tty_bufhead)->lock

drivers/tty/serial/serial_core.c uart_handle_dcd_change() -> tty_ldisc_ref()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	1-u64max
PREEMPT_ADD
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&atmel_port->lock_suspended
HALF_LOCKED2		&icom_port->uart_port.lock
HALF_LOCKED2		&port->lock
HALF_LOCKED2		&s->port.lock
HALF_LOCKED2		&sport->port.lock
HALF_LOCKED2		&u->lock
HALF_LOCKED2		&uport->lock
HALF_LOCKED2		_T->lock
HALF_LOCKED2		flags
HALF_LOCKED2		lock_flags

drivers/tty/tty_ioctl.c set_termios() -> tty_ldisc_ref()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	4096-ptr_max
PARAM_VALUE	0	tty->driver	4096-ptr_max
PARAM_VALUE	0	tty->ldisc	1-u64max
PARAM_VALUE	0	tty->ldisc_sem.read_wait.next	4096-ptr_max
PARAM_VALUE	0	tty->ldisc_sem.read_wait.prev	4096-ptr_max
PARAM_VALUE	0	tty->ops	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
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->list.prev	2212933610777083904
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	tty->termios_rwsem.wait_lock.dep_map->name	0-255
PARAM_VALUE	0	tty->termios_rwsem.wait_lock.owner	(-1)
PARAM_VALUE	0	tty->termios_rwsem.wait_lock.owner_cpu	u32max
CAPPED_DATA	0	&tty->termios_rwsem	1
DATA_SOURCE	0	tty	$0
LOCK2		&tty->ldisc_sem
LOCK2	0	&tty->atomic_write_lock
TYPE_LOCK		(struct tty_struct)->atomic_write_lock
TYPE_LOCK		(struct tty_struct)->ldisc_sem

drivers/tty/tty_ioctl.c tty_set_termios() -> tty_ldisc_ref()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	4096-ptr_max
PARAM_VALUE	0	tty->driver	4096-ptr_max
PARAM_VALUE	0	tty->ops	4096-ptr_max
PARAM_VALUE	0	tty->ops->chars_in_buffer	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->close	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->lookup	0,1028560029362032640,3174408500077174784
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->ops->wait_until_sent	0,2578158375326154752,2614800216018440192,6874988682411192320,7074827580452507648,7916194843820081152
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->handoff_set	0-1
PARAM_VALUE	0	tty->termios_rwsem.first_waiter->type	0-1
PARAM_VALUE	0	*tty->termios->c_cc	0-255
BUF_SIZE	0	tty	(-1),1816
BUF_SIZE	0	tty	(-1),1816
CAPPED_DATA	0	&tty->termios_rwsem	1
DATA_SOURCE	0	tty	$0
RX_PATH
TASK_NOT_RUNNING
USER_DATA	0	tty->driver_data->clocal	0-1
USER_DATA	0	tty->driver_data->line.bParityType	1-4[c]
USER_DATA	0	tty->driver_data->line.dwDTERate	0-4294967295
USER_DATA	0	tty->driver_data->line_coding.parity	1-4[c]
USER_DATA	0	tty->driver_data->line_coding.rate	0-4294967295
USER_DATA	0	tty->driver_data->timeout	5-320005[c]
USER_DATA	0	tty->termios.c_cflag	0-u32max[c]
USER_DATA	0	tty->termios.c_iflag	0-u32max[c]
USER_DATA	0	tty->termios.c_ispeed	0-u32max
USER_DATA	0	tty->termios.c_lflag	0-u32max[c]
USER_DATA	0	tty->termios.c_line	0-255
USER_DATA	0	tty->termios.c_oflag	0-u32max[c]
USER_DATA	0	tty->termios.c_ospeed	0-u32max
LOCK2	0	&tty->termios_rwsem
HALF_LOCKED2		&hdev->req_lock
HALF_LOCKED2		&tty->ldisc_sem
HALF_LOCKED2		global &spk_mutex
HALF_LOCKED2	0	&tty->atomic_write_lock
HALF_LOCKED2	0	&tty->ldisc_sem
TYPE_LOCK		(struct tty_struct)->termios_rwsem

drivers/usb/serial/generic.c usb_serial_handle_dcd_change() -> tty_ldisc_ref()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	4096-ptr_max
BUF_SIZE	0	tty	(-1),1-s32max
BUF_SIZE	0	tty	(-1),1-s32max
DATA_SOURCE	0	tty	$1
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&priv->lock

drivers/usb/class/cdc-acm.c acm_process_notification() -> tty_ldisc_ref()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	1-u64max
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		&pool->lock

drivers/tty/tty_ldisc.c tty_ldisc_flush() -> tty_ldisc_ref()

Type	Parameter	Key	Value
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->chars_in_buffer	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->close	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->compat_ioctl	0,1607379221601308672,5008286898947497984,6364353445524312064
PARAM_VALUE	0	tty->ops->ioctl	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->ldisc_ok	0,4096-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_ldisc	0,4096-ptr_max
PARAM_VALUE	0	tty->ops->set_termios	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
DATA_SOURCE	0	tty	$0
RX_PATH
TASK_NOT_RUNNING
HALF_LOCKED2		global &spk_mutex
HALF_LOCKED2	0	&tty->driver_data->d_lockref.lock
HALF_LOCKED2	0	&tty->legacy_mutex

drivers/tty/tty_ldisc.c tty_ldisc_hangup() -> tty_ldisc_ref()

Type	Parameter	Key	Value
PARAM_VALUE	0	tty	4096-ptr_max
PARAM_VALUE	0	tty->ctrl.session	0,4096-ptr_max
PARAM_VALUE	0	tty->driver	4096-ptr_max
PARAM_VALUE	0	tty->files_lock.rlock.dep_map->name	0-255
PARAM_VALUE	0	tty->legacy_mutex.dep_map->name	0-255
PARAM_VALUE	0	tty->legacy_mutex.first_waiter	0,4096-ptr_max
PARAM_VALUE	0	tty->legacy_mutex.first_waiter->list.prev->next	5159360019465732096
PARAM_VALUE	0	tty->legacy_mutex.first_waiter->list.prev->prev	5159360019465732096
PARAM_VALUE	0	tty->legacy_mutex.osq.tail.counter	0-s32max
PARAM_VALUE	0	tty->ops->chars_in_buffer	0,4096-ptr_max
PARAM_VALUE	0	tty->port	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),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
LOCK2	0	&tty->legacy_mutex
HALF_LOCKED2	0	&tty->driver_data->d_lockref.lock
TYPE_LOCK		(struct tty_struct)->legacy_mutex