Merge tag 'tty-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver updates from Greg KH:
 "Here is the big tty and serial driver update for 4.4-rc1.

  Lots of serial driver updates and a few small tty core changes.  Full
  details in the shortlog.

  All of these have been in linux-next for a while"

* tag 'tty-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (148 commits)
  tty: Use unbound workqueue for all input workers
  tty: Abstract tty buffer work
  tty: Prevent tty teardown during tty_write_message()
  tty: core: Use correct spinlock flavor in tiocspgrp()
  tty: Combine SIGTTOU/SIGTTIN handling
  serial: amba-pl011: fix incorrect integer size in pl011_fifo_to_tty()
  ttyFDC: Fix build problems due to use of module_{init,exit}
  tty: remove unneeded return statement
  serial: 8250_mid: add support for DMA engine handling from UART MMIO
  dmaengine: hsu: remove platform data
  dmaengine: hsu: introduce stubs for the exported functions
  dmaengine: hsu: make the UART driver in control of selecting this driver
  serial: fix mctrl helper functions
  serial: 8250_pci: Intel MID UART support to its own driver
  serial: fsl_lpuart: add earlycon support
  tty: disable unbind for old 74xx based serial/mpsc console port
  serial: pl011: Spelling s/clocks-names/clock-names/
  n_tty: Remove reader wakeups for TTY_BREAK/TTY_PARITY chars
  tty: synclink, fix indentation
  serial: at91, fix rs485 properties
  ...

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index 9cc6a13d5e5b..f7771d86ad6c 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -114,6 +114,7 @@ struct gs_port {
 	struct gs_buf		port_write_buf;
 	wait_queue_head_t	drain_wait;	/* wait while writes drain */
 	bool                    write_busy;
+	wait_queue_head_t	close_wait;
 
 	/* REVISIT this state ... */
 	struct usb_cdc_line_coding port_line_coding;	/* 8-N-1 etc */
@@ -883,7 +884,7 @@ 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(&port->port.close_wait);
+	wake_up(&port->close_wait);
 exit:
 	spin_unlock_irq(&port->port_lock);
 }
@@ -1043,6 +1044,7 @@ 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->drain_wait);
+	init_waitqueue_head(&port->close_wait);
 
 	tasklet_init(&port->push, gs_rx_push, (unsigned long) port);
 
@@ -1073,7 +1075,7 @@ static void gserial_free_port(struct gs_port *port)
 {
 	tasklet_kill(&port->push);
 	/* wait for old opens to finish */
-	wait_event(port->port.close_wait, gs_closed(port));
+	wait_event(port->close_wait, gs_closed(port));
 	WARN_ON(port->port_usb != NULL);
 	tty_port_destroy(&port->port);
 	kfree(port);