Merge tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial patches from Greg Kroah-Hartman:
 "Here's the big tty/serial driver patches for 3.9-rc1.

  More tty port rework and fixes from Jiri here, as well as lots of
  individual serial driver updates and fixes.

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

* tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (140 commits)
  tty: mxser: improve error handling in mxser_probe() and mxser_module_init()
  serial: imx: fix uninitialized variable warning
  serial: tegra: assume CONFIG_OF
  TTY: do not update atime/mtime on read/write
  lguest: select CONFIG_TTY to build properly.
  ARM defconfigs: add missing inclusions of linux/platform_device.h
  fb/exynos: include platform_device.h
  ARM: sa1100/assabet: include platform_device.h directly
  serial: imx: Fix recursive locking bug
  pps: Fix build breakage from decoupling pps from tty
  tty: Remove ancient hardpps()
  pps: Additional cleanups in uart_handle_dcd_change
  pps: Move timestamp read into PPS code proper
  pps: Don't crash the machine when exiting will do
  pps: Fix a use-after free bug when unregistering a source.
  pps: Use pps_lookup_dev to reduce ldisc coupling
  pps: Add pps_lookup_dev() function
  tty: serial: uartlite: Support uartlite on big and little endian systems
  tty: serial: uartlite: Fix sparse and checkpatch warnings
  serial/arc-uart: Miscll DT related updates (Grant's review comments)
  ...

Fix up trivial conflicts, mostly just due to the TTY config option
clashing with the EXPERIMENTAL removal.

2 files changed, 9 insertions, 13 deletions

diff --git a/net/bluetooth/rfcomm/Kconfig b/net/bluetooth/rfcomm/Kconfig
index 22e718b..18d352e 100644
--- a/net/bluetooth/rfcomm/Kconfig
+++ b/net/bluetooth/rfcomm/Kconfig
@@ -12,6 +12,7 @@ config BT_RFCOMM
 config BT_RFCOMM_TTY
 	bool "RFCOMM TTY support"
 	depends on BT_RFCOMM
+	depends on TTY
 	help
 	  This option enables TTY emulation support for RFCOMM channels.
 
diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c
index bd6fd0f..b6e44ad 100644
--- a/net/bluetooth/rfcomm/tty.c
+++ b/net/bluetooth/rfcomm/tty.c
@@ -541,23 +541,21 @@ int rfcomm_dev_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
 static void rfcomm_dev_data_ready(struct rfcomm_dlc *dlc, struct sk_buff *skb)
 {
 	struct rfcomm_dev *dev = dlc->owner;
-	struct tty_struct *tty;
 
 	if (!dev) {
 		kfree_skb(skb);
 		return;
 	}
 
-	tty = dev->port.tty;
-	if (!tty || !skb_queue_empty(&dev->pending)) {
+	if (!skb_queue_empty(&dev->pending)) {
 		skb_queue_tail(&dev->pending, skb);
 		return;
 	}
 
-	BT_DBG("dlc %p tty %p len %d", dlc, tty, skb->len);
+	BT_DBG("dlc %p len %d", dlc, skb->len);
 
-	tty_insert_flip_string(tty, skb->data, skb->len);
-	tty_flip_buffer_push(tty);
+	tty_insert_flip_string(&dev->port, skb->data, skb->len);
+	tty_flip_buffer_push(&dev->port);
 
 	kfree_skb(skb);
 }
@@ -621,26 +619,23 @@ static void rfcomm_dev_modem_status(struct rfcomm_dlc *dlc, u8 v24_sig)
 /* ---- TTY functions ---- */
 static void rfcomm_tty_copy_pending(struct rfcomm_dev *dev)
 {
-	struct tty_struct *tty = dev->port.tty;
 	struct sk_buff *skb;
 	int inserted = 0;
 
-	if (!tty)
-		return;
-
-	BT_DBG("dev %p tty %p", dev, tty);
+	BT_DBG("dev %p", dev);
 
 	rfcomm_dlc_lock(dev->dlc);
 
 	while ((skb = skb_dequeue(&dev->pending))) {
-		inserted += tty_insert_flip_string(tty, skb->data, skb->len);
+		inserted += tty_insert_flip_string(&dev->port, skb->data,
+				skb->len);
 		kfree_skb(skb);
 	}
 
 	rfcomm_dlc_unlock(dev->dlc);
 
 	if (inserted > 0)
-		tty_flip_buffer_push(tty);
+		tty_flip_buffer_push(&dev->port);
 }
 
 static int rfcomm_tty_open(struct tty_struct *tty, struct file *filp)