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authorAlan Cox <alan@linux.intel.com>2009-09-19 22:13:31 +0200
committerLive-CD User <linux@linux.site>2009-09-19 22:13:31 +0200
commitbdc04e3174e18f475289fa8f4144f66686326b7e (patch)
treec0bf03c8d6df1629bfa26b686fe65ffb0c87aeb7 /drivers/char/tty_port.c
parentserial: replace the state mutex with the tty port mutex (diff)
downloadlinux-bdc04e3174e18f475289fa8f4144f66686326b7e.tar.xz
linux-bdc04e3174e18f475289fa8f4144f66686326b7e.zip
serial: move delta_msr_wait into the tty_port
This is used by various drivers not just serial and can be extracted as commonality Signed-off-by: Alan Cox <alan@linux.intel.com>
Diffstat (limited to 'drivers/char/tty_port.c')
-rw-r--r--drivers/char/tty_port.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/char/tty_port.c b/drivers/char/tty_port.c
index 549bd0fa8bb6..c767e30a1425 100644
--- a/drivers/char/tty_port.c
+++ b/drivers/char/tty_port.c
@@ -23,6 +23,7 @@ void tty_port_init(struct tty_port *port)
memset(port, 0, sizeof(*port));
init_waitqueue_head(&port->open_wait);
init_waitqueue_head(&port->close_wait);
+ init_waitqueue_head(&port->delta_msr_wait);
mutex_init(&port->mutex);
spin_lock_init(&port->lock);
port->close_delay = (50 * HZ) / 100;
@@ -124,6 +125,7 @@ void tty_port_hangup(struct tty_port *port)
port->tty = NULL;
spin_unlock_irqrestore(&port->lock, flags);
wake_up_interruptible(&port->open_wait);
+ wake_up_interruptible(&port->delta_msr_wait);
tty_port_shutdown(port);
}
EXPORT_SYMBOL(tty_port_hangup);