Merge tag 'tty-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull TTY/Serial merge from Greg Kroah-Hartman:
 "Here's the big tty/serial tree set of changes for 3.8-rc1.

  Contained in here is a bunch more reworks of the tty port layer from
  Jiri and bugfixes from Alan, along with a number of other tty and
  serial driver updates by the various driver authors.

  Also, Jiri has been coerced^Wconvinced to be the co-maintainer of the
  TTY layer, which is much appreciated by me.

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

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

Fixed up some trivial conflicts in the staging tree, due to the fwserial
driver having come in both ways (but fixed up a bit in the serial tree),
and the ioctl handling in the dgrp driver having been done slightly
differently (staging tree got that one right, and removed both
TIOCGSOFTCAR and TIOCSSOFTCAR).

* tag 'tty-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (146 commits)
  staging: sb105x: fix potential NULL pointer dereference in mp_chars_in_buffer()
  staging/fwserial: Remove superfluous free
  staging/fwserial: Use WARN_ONCE when port table is corrupted
  staging/fwserial: Destruct embedded tty_port on teardown
  staging/fwserial: Fix build breakage when !CONFIG_BUG
  staging: fwserial: Add TTY-over-Firewire serial driver
  drivers/tty/serial/serial_core.c: clean up HIGH_BITS_OFFSET usage
  staging: dgrp: dgrp_tty.c: Audit the return values of get/put_user()
  staging: dgrp: dgrp_tty.c: Remove the TIOCSSOFTCAR ioctl handler from dgrp driver
  serial: ifx6x60: Add modem power off function in the platform reboot process
  serial: mxs-auart: unmap the scatter list before we copy the data
  serial: mxs-auart: disable the Receive Timeout Interrupt when DMA is enabled
  serial: max310x: Setup missing "can_sleep" field for GPIO
  tty/serial: fix ifx6x60.c declaration warning
  serial: samsung: add devicetree properties for non-Exynos SoCs
  serial: samsung: fix potential soft lockup during uart write
  tty: vt: Remove redundant null check before kfree.
  tty/8250 Add check for pci_ioremap_bar failure
  tty/8250 Add support for Commtech's Fastcom Async-335 and Fastcom Async-PCIe cards
  tty/8250 Add XR17D15x devices to the exar_handle_irq override
  ...

17 files changed, 42 insertions, 29 deletions

diff --git a/arch/alpha/include/asm/ioctls.h b/arch/alpha/include/asm/ioctls.h
index 80e1cee90f1f..92c557be49fc 100644
--- a/arch/alpha/include/asm/ioctls.h
+++ b/arch/alpha/include/asm/ioctls.h
@@ -95,6 +95,9 @@
 #define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T',0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	0x5437
+#define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
+#define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
+#define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c
index 5d5865204a1d..59b7bbad8394 100644
--- a/arch/alpha/kernel/srmcons.c
+++ b/arch/alpha/kernel/srmcons.c
@@ -205,7 +205,6 @@ static const struct tty_operations srmcons_ops = {
 static int __init
 srmcons_init(void)
 {
-	tty_port_init(&srmcons_singleton.port);
 	setup_timer(&srmcons_singleton.timer, srmcons_receive_chars,
 			(unsigned long)&srmcons_singleton);
 	if (srm_is_registered_console) {
@@ -215,6 +214,9 @@ srmcons_init(void)
 		driver = alloc_tty_driver(MAX_SRM_CONSOLE_DEVICES);
 		if (!driver)
 			return -ENOMEM;
+
+		tty_port_init(&srmcons_singleton.port);
+
 		driver->driver_name = "srm";
 		driver->name = "srm";
 		driver->major = 0; 	/* dynamic */
@@ -227,6 +229,7 @@ srmcons_init(void)
 		err = tty_register_driver(driver);
 		if (err) {
 			put_tty_driver(driver);
+			tty_port_destroy(&srmcons_singleton.port);
 			return err;
 		}
 		srmcons_driver = driver;
diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 55c57ea6169e..b4587b27ae42 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -799,6 +799,7 @@
 				compatible = "fsl,imx28-auart", "fsl,imx23-auart";
 				reg = <0x8006a000 0x2000>;
 				interrupts = <112 70 71>;
+				fsl,auart-dma-channel = <8 9>;
 				clocks = <&clks 45>;
 				status = "disabled";
 			};
diff --git a/arch/arm/plat-omap/include/plat/serial.h b/arch/arm/plat-omap/include/plat/serial.h
index 65fce44dce34..b780470d03ea 100644
--- a/arch/arm/plat-omap/include/plat/serial.h
+++ b/arch/arm/plat-omap/include/plat/serial.h
@@ -109,15 +109,6 @@
 #define OMAP5UART4		OMAP4UART4
 #define ZOOM_UART		95		/* Only on zoom2/3 */
 
-/* This is only used by 8250.c for omap1510 */
-#define is_omap_port(pt)	({int __ret = 0;			\
-			if ((pt)->port.mapbase == OMAP1_UART1_BASE ||	\
-			    (pt)->port.mapbase == OMAP1_UART2_BASE ||	\
-			    (pt)->port.mapbase == OMAP1_UART3_BASE)	\
-				__ret = 1;				\
-			__ret;						\
-			})
-
 #ifndef __ASSEMBLER__
 
 struct omap_board_data;
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index ec536e4e36c9..fc3924d18c1f 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -555,6 +555,7 @@ static int __init simrs_init(void)
 	return 0;
 err_free_tty:
 	put_tty_driver(hp_simserial_driver);
+	tty_port_destroy(&state->port);
 	return retval;
 }
 
diff --git a/arch/m68k/emu/nfcon.c b/arch/m68k/emu/nfcon.c
index 16d170f53bfd..6685bf45c2c3 100644
--- a/arch/m68k/emu/nfcon.c
+++ b/arch/m68k/emu/nfcon.c
@@ -120,8 +120,6 @@ static int __init nfcon_init(void)
 {
 	int res;
 
-	tty_port_init(&nfcon_tty_port);
-
 	stderr_id = nf_get_id("NF_STDERR");
 	if (!stderr_id)
 		return -ENODEV;
@@ -130,6 +128,8 @@ static int __init nfcon_init(void)
 	if (!nfcon_tty_driver)
 		return -ENOMEM;
 
+	tty_port_init(&nfcon_tty_port);
+
 	nfcon_tty_driver->driver_name = "nfcon";
 	nfcon_tty_driver->name = "nfcon";
 	nfcon_tty_driver->type = TTY_DRIVER_TYPE_SYSTEM;
@@ -143,6 +143,7 @@ static int __init nfcon_init(void)
 	if (res) {
 		pr_err("failed to register nfcon tty driver\n");
 		put_tty_driver(nfcon_tty_driver);
+		tty_port_destroy(&nfcon_tty_port);
 		return res;
 	}
 
@@ -157,6 +158,7 @@ static void __exit nfcon_exit(void)
 	unregister_console(&nf_console);
 	tty_unregister_driver(nfcon_tty_driver);
 	put_tty_driver(nfcon_tty_driver);
+	tty_port_destroy(&nfcon_tty_port);
 }
 
 module_init(nfcon_init);
diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
index 92403c3d6007..addd56b60694 100644
--- a/arch/mips/include/uapi/asm/ioctls.h
+++ b/arch/mips/include/uapi/asm/ioctls.h
@@ -86,6 +86,9 @@
 #define TIOCGDEV	_IOR('T', 0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T', 0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	0x5437
+#define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
+#define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
+#define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
 
 /* I hope the range from 0x5480 on is free ... */
 #define TIOCSCTTY	0x5480		/* become controlling tty */
diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index 054ec06f9e23..66719c38a36b 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -55,6 +55,9 @@
 #define TIOCGDEV	_IOR('T',0x32, int)  /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T',0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	0x5437
+#define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
+#define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
+#define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
 
 #define FIONCLEX	0x5450  /* these numbers need to be adjusted. */
 #define FIOCLEX		0x5451
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 88238638aee6..efc5e7d30530 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -186,13 +186,13 @@ static int __init pdc_console_tty_driver_init(void)
 	printk(KERN_INFO "The PDC console driver is still registered, removing CON_BOOT flag\n");
 	pdc_cons.flags &= ~CON_BOOT;
 
-	tty_port_init(&tty_port);
-
 	pdc_console_tty_driver = alloc_tty_driver(1);
 
 	if (!pdc_console_tty_driver)
 		return -ENOMEM;
 
+	tty_port_init(&tty_port);
+
 	pdc_console_tty_driver->driver_name = "pdc_cons";
 	pdc_console_tty_driver->name = "ttyB";
 	pdc_console_tty_driver->major = MUX_MAJOR;
@@ -207,6 +207,7 @@ static int __init pdc_console_tty_driver_init(void)
 	err = tty_register_driver(pdc_console_tty_driver);
 	if (err) {
 		printk(KERN_ERR "Unable to register the PDC console TTY driver\n");
+		tty_port_destroy(&tty_port);
 		return err;
 	}
 
diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/include/uapi/asm/ioctls.h
index e9b78870aaab..49a25796a61a 100644
--- a/arch/powerpc/include/uapi/asm/ioctls.h
+++ b/arch/powerpc/include/uapi/asm/ioctls.h
@@ -97,6 +97,9 @@
 #define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T',0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	0x5437
+#define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
+#define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
+#define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
 
 #define TIOCSERCONFIG	0x5453
 #define TIOCSERGWILD	0x5454
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index a6769f352bf6..342241079760 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -88,6 +88,9 @@
 #define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T',0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	_IO('T', 0x37)
+#define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
+#define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
+#define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
 
 #define TIOCSERCONFIG	_IO('T', 83) /* 0x5453 */
 #define TIOCSERGWILD	_IOR('T', 84,  int) /* 0x5454 */
diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 9155f7041d44..897d1723fa14 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -21,6 +21,9 @@
 #define TCSETSF2	_IOW('T', 15, struct termios2)
 #define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TIOCVHANGUP	_IO('T', 0x37)
+#define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
+#define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
+#define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
 
 /* Note that all the ioctls that are not available in Linux have a 
  * double underscore on the front to: a) avoid some programs to
diff --git a/arch/um/drivers/chan_kern.c b/arch/um/drivers/chan_kern.c
index c3bba73e4be6..e9a0abc6a32f 100644
--- a/arch/um/drivers/chan_kern.c
+++ b/arch/um/drivers/chan_kern.c
@@ -83,21 +83,8 @@ static const struct chan_ops not_configged_ops = {
 
 static void tty_receive_char(struct tty_struct *tty, char ch)
 {
-	if (tty == NULL)
-		return;
-
-	if (I_IXON(tty) && !I_IXOFF(tty) && !tty->raw) {
-		if (ch == STOP_CHAR(tty)) {
-			stop_tty(tty);
-			return;
-		}
-		else if (ch == START_CHAR(tty)) {
-			start_tty(tty);
-			return;
-		}
-	}
-
-	tty_insert_flip_char(tty, ch, TTY_NORMAL);
+	if (tty)
+		tty_insert_flip_char(tty, ch, TTY_NORMAL);
 }
 
 static int open_one_chan(struct chan *chan)
diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
index fd9a15b318af..9ffc28bd4b7a 100644
--- a/arch/um/drivers/line.c
+++ b/arch/um/drivers/line.c
@@ -584,6 +584,8 @@ int register_lines(struct line_driver *line_driver,
 		printk(KERN_ERR "register_lines : can't register %s driver\n",
 		       line_driver->name);
 		put_tty_driver(driver);
+		for (i = 0; i < nlines; i++)
+			tty_port_destroy(&lines[i].port);
 		return err;
 	}
 
diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c
index 92525cb8e54c..f8ab4945892e 100644
--- a/arch/x86/platform/ce4100/ce4100.c
+++ b/arch/x86/platform/ce4100/ce4100.c
@@ -105,8 +105,11 @@ static void ce4100_serial_fixup(int port, struct uart_port *up,
 		up->membase =
 			(void __iomem *)__fix_to_virt(FIX_EARLYCON_MEM_BASE);
 		up->membase += up->mapbase & ~PAGE_MASK;
+		up->mapbase += port * 0x100;
+		up->membase += port * 0x100;
 		up->iotype   = UPIO_MEM32;
 		up->regshift = 2;
+		up->irq = 4;
 	}
 #endif
 	up->iobase = 0;
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index 2aa4cd9f0cec..b4cb1100c0fb 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -101,6 +101,9 @@
 #define TIOCGDEV	_IOR('T',0x32, unsigned int) /* Get primary device node of /dev/console */
 #define TIOCSIG		_IOW('T',0x36, int)  /* Generate signal on Pty slave */
 #define TIOCVHANGUP	_IO('T', 0x37)
+#define TIOCGPKT	_IOR('T', 0x38, int) /* Get packet mode state */
+#define TIOCGPTLCK	_IOR('T', 0x39, int) /* Get Pty lock state */
+#define TIOCGEXCL	_IOR('T', 0x40, int) /* Get exclusive mode state */
 
 #define TIOCSERCONFIG	_IO('T', 83)
 #define TIOCSERGWILD	_IOR('T', 84,  int)
diff --git a/arch/xtensa/platforms/iss/console.c b/arch/xtensa/platforms/iss/console.c
index 7e74895eee04..8207a119eee9 100644
--- a/arch/xtensa/platforms/iss/console.c
+++ b/arch/xtensa/platforms/iss/console.c
@@ -221,6 +221,7 @@ static __exit void rs_exit(void)
 		printk("ISS_SERIAL: failed to unregister serial driver (%d)\n",
 		       error);
 	put_tty_driver(serial_driver);
+	tty_port_destroy(&serial_port);
 }