Merge tag 'tty-3.15-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 3.15-rc1.

  Nothing major, a number of serial driver updates and a few tty core
  fixes as well.

  All have been in linux-next for a while"

* tag 'tty-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (71 commits)
  tty/serial: omap: empty the RX FIFO at the end of half-duplex TX
  tty/serial: omap: fix RX interrupt enable/disable in half-duplex TX
  serial: sh-sci: Neaten dev_<level> uses
  serial: sh-sci: Replace hardcoded 3 by UART_PM_STATE_OFF
  serial: sh-sci: Add more register documentation
  serial: sh-sci: Remove useless casts
  serial: sh-sci: Replace printk() by pr_*()
  serial_core: Avoid NULL pointer dereference in uart_close()
  serial_core: Get a reference for port->tty in uart_remove_one_port()
  serial: clps711x: Give a chance to perform useful tasks during wait loop
  serial_core: Grammar s/ports/port's/
  serial_core: Spelling s/contro/control/
  serial: efm32: properly namespace location property
  serial: max310x: Add missing #include <linux/uaccess.h>
  synclink: fix info leak in ioctl
  serial: 8250: Clean up the locking for -rt
  serial: 8250_pci: change BayTrail default uartclk
  serial: 8250_pci: more BayTrail error-free bauds
  serial: sh-sci: Add missing call to uart_remove_one_port() in failure path
  serial_core: Unregister console in uart_remove_one_port()
  ...

1 files changed, 13 insertions, 7 deletions

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 23b5d32954bf..3ad0b61e35b4 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1590,9 +1590,9 @@ static void restore_cur(struct vc_data *vc)
 	vc->vc_need_wrap = 0;
 }
 
-enum { ESnormal, ESesc, ESsquare, ESgetpars, ESgotpars, ESfunckey,
+enum { ESnormal, ESesc, ESsquare, ESgetpars, ESfunckey,
 	EShash, ESsetG0, ESsetG1, ESpercent, ESignore, ESnonstd,
-	ESpalette };
+	ESpalette, ESosc };
 
 /* console_lock is held (except via vc_init()) */
 static void reset_terminal(struct vc_data *vc, int do_clear)
@@ -1652,11 +1652,15 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 	 *  Control characters can be used in the _middle_
 	 *  of an escape sequence.
 	 */
+	if (vc->vc_state == ESosc && c>=8 && c<=13) /* ... except for OSC */
+		return;
 	switch (c) {
 	case 0:
 		return;
 	case 7:
-		if (vc->vc_bell_duration)
+		if (vc->vc_state == ESosc)
+			vc->vc_state = ESnormal;
+		else if (vc->vc_bell_duration)
 			kd_mksound(vc->vc_bell_pitch, vc->vc_bell_duration);
 		return;
 	case 8:
@@ -1767,7 +1771,9 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 		} else if (c=='R') {   /* reset palette */
 			reset_palette(vc);
 			vc->vc_state = ESnormal;
-		} else
+		} else if (c>='0' && c<='9')
+			vc->vc_state = ESosc;
+		else
 			vc->vc_state = ESnormal;
 		return;
 	case ESpalette:
@@ -1807,9 +1813,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 			vc->vc_par[vc->vc_npar] *= 10;
 			vc->vc_par[vc->vc_npar] += c - '0';
 			return;
-		} else
-			vc->vc_state = ESgotpars;
-	case ESgotpars:
+		}
 		vc->vc_state = ESnormal;
 		switch(c) {
 		case 'h':
@@ -2023,6 +2027,8 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 			vc->vc_translate = set_translate(vc->vc_G1_charset, vc);
 		vc->vc_state = ESnormal;
 		return;
+	case ESosc:
+		return;
 	default:
 		vc->vc_state = ESnormal;
 	}