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TTY: ircomm, add tty_port

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And use close/open_wait from there.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Samuel Ortiz <samuel@sortiz.org>
Cc: netdev@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Jiri Slaby 2012-06-04 13:35:16 +02:00 • committed by Greg Kroah-Hartman
parent 718c4ca1f7
commit a3cc9fcff8
3 changed files with 13 additions and 13 deletions
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3
include/net/irda/ircomm_tty.h
View file

@ -62,6 +62,7 @@
*/ */
struct ircomm_tty_cb { struct ircomm_tty_cb {
irda_queue_t queue; /* Must be first */ irda_queue_t queue; /* Must be first */
struct tty_port port;
magic_t magic; magic_t magic;
int state; /* Connect state */ int state; /* Connect state */
@ -97,8 +98,6 @@ struct ircomm_tty_cb {
void *skey; void *skey;
void *ckey; void *ckey;
wait_queue_head_t open_wait;
wait_queue_head_t close_wait;
struct timer_list watchdog_timer; struct timer_list watchdog_timer;
struct work_struct tqueue; struct work_struct tqueue;

21
net/irda/ircomm/ircomm_tty.c
View file

@ -278,7 +278,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
*/ */
retval = 0; retval = 0;
add_wait_queue(&self->open_wait, &wait); add_wait_queue(&self->port.open_wait, &wait);
IRDA_DEBUG(2, "%s(%d):block_til_ready before block on %s open_count=%d\n", IRDA_DEBUG(2, "%s(%d):block_til_ready before block on %s open_count=%d\n",
__FILE__,__LINE__, tty->driver->name, self->open_count ); __FILE__,__LINE__, tty->driver->name, self->open_count );
@ -336,7 +336,7 @@ static int ircomm_tty_block_til_ready(struct ircomm_tty_cb *self,
} }
__set_current_state(TASK_RUNNING); __set_current_state(TASK_RUNNING);
remove_wait_queue(&self->open_wait, &wait); remove_wait_queue(&self->port.open_wait, &wait);
if (extra_count) { if (extra_count) {
/* ++ is not atomic, so this should be protected - Jean II */ /* ++ is not atomic, so this should be protected - Jean II */
@ -381,6 +381,7 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
return -ENOMEM; return -ENOMEM;
} }
tty_port_init(&self->port);
self->magic = IRCOMM_TTY_MAGIC; self->magic = IRCOMM_TTY_MAGIC;
self->flow = FLOW_STOP; self->flow = FLOW_STOP;
@ -393,8 +394,6 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
/* Init some important stuff */ /* Init some important stuff */
init_timer(&self->watchdog_timer); init_timer(&self->watchdog_timer);
init_waitqueue_head(&self->open_wait);
init_waitqueue_head(&self->close_wait);
spin_lock_init(&self->spinlock); spin_lock_init(&self->spinlock);
/* /*
@ -408,6 +407,7 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
tty->termios->c_oflag = 0; tty->termios->c_oflag = 0;
/* Insert into hash */ /* Insert into hash */
/* FIXME there is a window from find to here */
hashbin_insert(ircomm_tty, (irda_queue_t *) self, line, NULL); hashbin_insert(ircomm_tty, (irda_queue_t *) self, line, NULL);
} }
/* ++ is not atomic, so this should be protected - Jean II */ /* ++ is not atomic, so this should be protected - Jean II */
@ -438,7 +438,8 @@ static int ircomm_tty_open(struct tty_struct *tty, struct file *filp)
* probably better sleep uninterruptible? * probably better sleep uninterruptible?
*/ */
if (wait_event_interruptible(self->close_wait, !test_bit(ASYNC_B_CLOSING, &self->flags))) { if (wait_event_interruptible(self->port.close_wait,
!test_bit(ASYNC_B_CLOSING, &self->flags))) {
IRDA_WARNING("%s - got signal while blocking on ASYNC_CLOSING!\n", IRDA_WARNING("%s - got signal while blocking on ASYNC_CLOSING!\n",
__func__); __func__);
return -ERESTARTSYS; return -ERESTARTSYS;
@ -559,11 +560,11 @@ static void ircomm_tty_close(struct tty_struct *tty, struct file *filp)
if (self->blocked_open) { if (self->blocked_open) {
if (self->close_delay) if (self->close_delay)
schedule_timeout_interruptible(self->close_delay); schedule_timeout_interruptible(self->close_delay);
wake_up_interruptible(&self->open_wait); wake_up_interruptible(&self->port.open_wait);
} }
self->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING); self->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
wake_up_interruptible(&self->close_wait); wake_up_interruptible(&self->port.close_wait);
} }
/* /*
@ -1011,7 +1012,7 @@ static void ircomm_tty_hangup(struct tty_struct *tty)
self->open_count = 0; self->open_count = 0;
spin_unlock_irqrestore(&self->spinlock, flags); spin_unlock_irqrestore(&self->spinlock, flags);
wake_up_interruptible(&self->open_wait); wake_up_interruptible(&self->port.open_wait);
} }
/* /*
@ -1084,7 +1085,7 @@ void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self)
(status & IRCOMM_CD) ? "on" : "off"); (status & IRCOMM_CD) ? "on" : "off");
if (status & IRCOMM_CD) { if (status & IRCOMM_CD) {
wake_up_interruptible(&self->open_wait); wake_up_interruptible(&self->port.open_wait);
} else { } else {
IRDA_DEBUG(2, IRDA_DEBUG(2,
"%s(), Doing serial hangup..\n", __func__ ); "%s(), Doing serial hangup..\n", __func__ );
@ -1103,7 +1104,7 @@ void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self)
tty->hw_stopped = 0; tty->hw_stopped = 0;
/* Wake up processes blocked on open */ /* Wake up processes blocked on open */
wake_up_interruptible(&self->open_wait); wake_up_interruptible(&self->port.open_wait);
schedule_work(&self->tqueue); schedule_work(&self->tqueue);
return; return;

2
net/irda/ircomm/ircomm_tty_attach.c
View file

@ -575,7 +575,7 @@ void ircomm_tty_link_established(struct ircomm_tty_cb *self)
self->tty->hw_stopped = 0; self->tty->hw_stopped = 0;
/* Wake up processes blocked on open */ /* Wake up processes blocked on open */
wake_up_interruptible(&self->open_wait); wake_up_interruptible(&self->port.open_wait);
} }
schedule_work(&self->tqueue); schedule_work(&self->tqueue);