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Commit 31ca020b authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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TTY: wake up processes last at hangup 



Move wake up of processes on blocked-open and modem-status wait queues
to after port shutdown at hangup.

This way the woken up processes can use the ASYNC_INITIALIZED flag to
detect port shutdown.

Note that this is the order currently used by serial-core.

Signed-off-by: default avatarJohan Hovold <jhovold@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8bde9658

drivers/tty/tty_port.c

+1 −1
Original line number Diff line number Diff line
@@ -231,9 +231,9 @@ void tty_port_hangup(struct tty_port *port) 
	}

	port->tty = NULL;

	spin_unlock_irqrestore(&port->lock, flags);

	tty_port_shutdown(port);

	wake_up_interruptible(&port->open_wait);

	wake_up_interruptible(&port->delta_msr_wait);

	tty_port_shutdown(port);

}

EXPORT_SYMBOL(tty_port_hangup);