From 4208978ec4f0d6001facf95be9defccf1a0bf313 Mon Sep 17 00:00:00 2001 From: Savin Zlobec Date: Fri, 15 Feb 2008 13:42:01 +0100 Subject: [PATCH] USB: gadget: Hangup tty on g_serial disconnect On USB cable disconnect g_serial doesn't hangup the port tty, which results in an endless read on the tty device. With the following patch the read and select behave correctly when the cable is unplugged. Tested on at91rm9200 Signed-off-by: Savin Zlobec Signed-off-by: David Brownell Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/serial.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index f5c3896b1d9..433b3f44f42 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -2163,8 +2163,7 @@ static void gs_free_ports(struct gs_dev *dev) port->port_dev = NULL; wake_up_interruptible(&port->port_write_wait); if (port->port_tty) { - wake_up_interruptible(&port->port_tty->read_wait); - wake_up_interruptible(&port->port_tty->write_wait); + tty_hangup(port->port_tty); } spin_unlock_irqrestore(&port->port_lock, flags); } else { -- 2.41.0