TTY: usb/u_serial use close_wait from tty_port

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
index d038a90..71ecae7 100644 (file)
--- a/drivers/usb/gadget/u_serial.c
+++ b/drivers/usb/gadget/u_serial.c
@@ -102,8 +102,6 @@ struct gs_port {
        bool                    openclose;      /* open/close in progress */
        u8                      port_num;
 
-       wait_queue_head_t       close_wait;     /* wait for last close */
-
        struct list_head        read_pool;
        int read_started;
        int read_allocated;
@@ -885,7 +883,7 @@ static void gs_close(struct tty_struct *tty, struct file *file)
        pr_debug("gs_close: ttyGS%d (%p,%p) done!\n",
                        port->port_num, tty, file);
 
-       wake_up_interruptible(&port->close_wait);
+       wake_up_interruptible(&port->port.close_wait);
 exit:
        spin_unlock_irq(&port->port_lock);
 }
@@ -1035,7 +1033,6 @@ gs_port_alloc(unsigned port_num, struct usb_cdc_line_coding *coding)
 
        tty_port_init(&port->port);
        spin_lock_init(&port->port_lock);
-       init_waitqueue_head(&port->close_wait);
        init_waitqueue_head(&port->drain_wait);
 
        tasklet_init(&port->push, gs_rx_push, (unsigned long) port);
@@ -1194,7 +1191,7 @@ void gserial_cleanup(void)
                tasklet_kill(&port->push);
 
                /* wait for old opens to finish */
-               wait_event(port->close_wait, gs_closed(port));
+               wait_event(port->port.close_wait, gs_closed(port));
 
                WARN_ON(port->port_usb != NULL);