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Commit ec3ee508 authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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USB: serial: clear fifo on close 



Make sure fifo is emptied on close.

Signed-off-by: default avatarJohan Hovold <jhovold@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 50dbb852

drivers/usb/serial/generic.c

+7 −1
Original line number Diff line number Diff line
@@ -156,13 +156,19 @@ EXPORT_SYMBOL_GPL(usb_serial_generic_open); 
static void generic_cleanup(struct usb_serial_port *port)

{

	struct usb_serial *serial = port->serial;

	unsigned long flags;



	dbg("%s - port %d", __func__, port->number);



	if (serial->dev) {

		/* shutdown any bulk transfers that might be going on */

		if (port->bulk_out_size)

		if (port->bulk_out_size) {

			usb_kill_urb(port->write_urb);



			spin_lock_irqsave(&port->lock, flags);

			kfifo_reset_out(&port->write_fifo);

			spin_unlock_irqrestore(&port->lock, flags);

		}

		if (port->bulk_in_size)

			usb_kill_urb(port->read_urb);

	}