Merge tag 'tty-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial driver update from Greg KH:
 "Here's the big tty / serial driver update for 3.17-rc1.

  Nothing major, just a number of fixes and new features for different
  serial drivers, and some more tty core fixes and documentation of the
  tty locks.

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

* tag 'tty-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (82 commits)
  tty/n_gsm.c: fix a memory leak in gsmld_open
  pch_uart: don't hardcode PCI slot to get DMA device
  tty: n_gsm, use setup_timer
  Revert "ARC: [arcfpga] stdout-path now suffices for earlycon/console"
  serial: sc16is7xx: Correct initialization of s->clk
  serial: 8250_dw: Add support for deferred probing
  serial: 8250_dw: Add optional reset control support
  serial: st-asc: Fix overflow in baudrate calculation
  serial: st-asc: Don't call BUG in asc_console_setup()
  tty: serial: msm: Make of_device_id array const
  tty/n_gsm.c: get gsm->num after gsm_activate_mux
  serial/core: Fix too big allocation for attribute member
  drivers/tty/serial: use correct type for dma_map/unmap
  serial: altera_jtaguart: Fix putchar function passed to uart_console_write()
  serial/uart/8250: Add tunable RX interrupt trigger I/F of FIFO buffers
  Serial: allow port drivers to have a default attribute group
  tty: kgdb_nmi: Automatically manage tty enable
  serial: altera_jtaguart: Adpot uart_console_write()
  serial: samsung: improve code clarity by defining a variable
  serial: samsung: correct the case and default order in switch
  ...

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 8320abd1ef14..0ea9986059af 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -2347,8 +2347,6 @@ static void mgslpc_close(struct tty_struct *tty, struct file * filp)
                 printk("%s(%d):mgslpc_close(%s) entry, count=%d\n",
                          __FILE__, __LINE__, info->device_name, port->count);
 
-        WARN_ON(!port->count);
-
         if (tty_port_close_start(port, tty, filp) == 0)
                 goto cleanup;
 
@@ -2510,7 +2508,7 @@ static int mgslpc_open(struct tty_struct *tty, struct file * filp)
                          __FILE__, __LINE__, tty->driver->name, port->count);
 
         /* If port is closing, signal caller to try again */
-        if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING){
+        if (port->flags & ASYNC_CLOSING){
                 wait_event_interruptible_tty(tty, port->close_wait,
                                              !(port->flags & ASYNC_CLOSING));
                 retval = ((port->flags & ASYNC_HUP_NOTIFY) ?