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authorSavin Zlobec <savin@epiko.si>2008-02-15 13:42:01 +0100
committerGreg Kroah-Hartman <gregkh@suse.de>2008-04-24 21:16:35 -0700
commit4208978ec4f0d6001facf95be9defccf1a0bf313 (patch)
tree0ba2aa83a81e365500954708f7f07c459d861dbd
parentc765d4cad977f7e454a53d5bca5a942156b2d94c (diff)
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 <savin@epiko.si> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/usb/gadget/serial.c3
1 files changed, 1 insertions, 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 {