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Message-Id: <1362668153-10972-3-git-send-email-jhovold@gmail.com>
Date: Thu, 7 Mar 2013 15:55:49 +0100
From: Johan Hovold <jhovold@...il.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jiri Slaby <jslaby@...e.cz>,
Peter Hurley <peter@...leysoftware.com>,
Alan Stern <stern@...land.harvard.edu>,
linux-usb@...r.kernel.org, linux-serial@...r.kernel.org,
linux-kernel@...r.kernel.org, Johan Hovold <jhovold@...il.com>
Subject: [PATCH v3 2/6] 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: Johan Hovold <jhovold@...il.com>
---
drivers/tty/tty_port.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index 57a061e..3de5918 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -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);
--
1.8.1.1
--
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