Merge tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull TTY changes from Greg Kroah-Hartman:
 "As we skipped the merge window for 3.6-rc1 for the tty tree,
  everything is now settled down and working properly, so we are ready
  for 3.7-rc1.  Here's the patchset, it's big, but the large changes are
  removing a firmware file and adding a staging tty driver (it depended
  on the tty core changes, so it's going through this tree instead of
  the staging tree.)

  All of these patches have been in the linux-next tree for a while.

  Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"

Fix up more-or-less trivial conflicts in
 - drivers/char/pcmcia/synclink_cs.c:
    tty NULL dereference fix vs tty_port_cts_enabled() helper function
 - drivers/staging/{Kconfig,Makefile}:
    add-add conflict (dgrp driver added close to other staging drivers)
 - drivers/staging/ipack/devices/ipoctal.c:
    "split ipoctal_channel from iopctal" vs "TTY: use tty_port_register_device"

* tag 'tty-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (235 commits)
  tty/serial: Add kgdb_nmi driver
  tty/serial/amba-pl011: Quiesce interrupts in poll_get_char
  tty/serial/amba-pl011: Implement poll_init callback
  tty/serial/core: Introduce poll_init callback
  kdb: Turn KGDB_KDB=n stubs into static inlines
  kdb: Implement disable_nmi command
  kernel/debug: Mask KGDB NMI upon entry
  serial: pl011: handle corruption at high clock speeds
  serial: sccnxp: Make 'default' choice in switch last
  serial: sccnxp: Remove mask termios caps for SW flow control
  serial: sccnxp: Report actual baudrate back to core
  serial: samsung: Add poll_get_char & poll_put_char
  Powerpc 8xx CPM_UART setting MAXIDL register proportionaly to baud rate
  Powerpc 8xx CPM_UART maxidl should not depend on fifo size
  Powerpc 8xx CPM_UART too many interrupts
  Powerpc 8xx CPM_UART desynchronisation
  serial: set correct baud_base for EXSYS EX-41092 Dual 16950
  serial: omap: fix the reciever line error case
  8250: blacklist Winbond CIR port
  8250_pnp: do pnp probe before legacy probe
  ...

1 files changed, 22 insertions, 6 deletions

diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 6c0116d48c74..9ffb6d5f17aa 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -716,10 +716,17 @@ static int raw3215_probe (struct ccw_device *cdev)
 static void raw3215_remove (struct ccw_device *cdev)
 {
         struct raw3215_info *raw;
+        unsigned int line;
 
         ccw_device_set_offline(cdev);
         raw = dev_get_drvdata(&cdev->dev);
         if (raw) {
+                spin_lock(&raw3215_device_lock);
+                for (line = 0; line < NR_3215; line++)
+                        if (raw3215[line] == raw)
+                                break;
+                raw3215[line] = NULL;
+                spin_unlock(&raw3215_device_lock);
                 dev_set_drvdata(&cdev->dev, NULL);
                 raw3215_free_info(raw);
         }
@@ -935,6 +942,19 @@ static int __init con3215_init(void)
 console_initcall(con3215_init);
 #endif
 
+static int tty3215_install(struct tty_driver *driver, struct tty_struct *tty)
+{
+        struct raw3215_info *raw;
+
+        raw = raw3215[tty->index];
+        if (raw == NULL)
+                return -ENODEV;
+
+        tty->driver_data = raw;
+
+        return tty_port_install(&raw->port, driver, tty);
+}
+
 /*
  * tty3215_open
  *
@@ -942,14 +962,9 @@ console_initcall(con3215_init);
  */
 static int tty3215_open(struct tty_struct *tty, struct file * filp)
 {
-        struct raw3215_info *raw;
+        struct raw3215_info *raw = tty->driver_data;
         int retval;
 
-        raw = raw3215[tty->index];
-        if (raw == NULL)
-                return -ENODEV;
-
-        tty->driver_data = raw;
         tty_port_tty_set(&raw->port, tty);
 
         tty->low_latency = 0;  /* don't use bottom half for pushing chars */
@@ -1110,6 +1125,7 @@ static void tty3215_start(struct tty_struct *tty)
 }
 
 static const struct tty_operations tty3215_ops = {
+        .install = tty3215_install,
         .open = tty3215_open,
         .close = tty3215_close,
         .write = tty3215_write,