1 files changed, 18 insertions, 9 deletions

diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 5755b7e5f187..4bb3d2272604 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -39,6 +39,7 @@
 #include <linux/vt_kern.h>
 #include <linux/sysrq.h>
 #include <linux/input.h>
+#include <linux/reboot.h>
 
 static void kbd_disconnect(struct input_handle *handle);
 extern void ctrl_alt_del(void);
@@ -150,6 +151,7 @@ unsigned char kbd_sysrq_xlate[KEY_MAX + 1] =
         "230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */
         "\r\000/";                                      /* 0x60 - 0x6f */
 static int sysrq_down;
+static int sysrq_alt_use;
 #endif
 static int sysrq_alt;
 
@@ -672,7 +674,7 @@ static void k_dead2(struct vc_data *vc, unsigned char value, char up_flag, struc
  */
 static void k_dead(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
 {
-        static unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' };
+        static const unsigned char ret_diacr[NR_DEAD] = {'`', '\'', '^', '~', '"', ',' };
         value = ret_diacr[value];
         k_deadunicode(vc, value, up_flag, regs);
 }
@@ -709,8 +711,8 @@ static void k_cur(struct vc_data *vc, unsigned char value, char up_flag, struct
 
 static void k_pad(struct vc_data *vc, unsigned char value, char up_flag, struct pt_regs *regs)
 {
-        static const char *pad_chars = "0123456789+-*/\015,.?()#";
-        static const char *app_map = "pqrstuvwxylSRQMnnmPQS";
+        static const char pad_chars[] = "0123456789+-*/\015,.?()#";
+        static const char app_map[] = "pqrstuvwxylSRQMnnmPQS";
 
         if (up_flag)
                 return;         /* no action, if this is a key release */
@@ -1035,7 +1037,7 @@ static void kbd_refresh_leds(struct input_handle *handle)
 #define HW_RAW(dev) (test_bit(EV_MSC, dev->evbit) && test_bit(MSC_RAW, dev->mscbit) &&\
                         ((dev)->id.bustype == BUS_I8042) && ((dev)->id.vendor == 0x0001) && ((dev)->id.product == 0x0001))
 
-static unsigned short x86_keycodes[256] =
+static const unsigned short x86_keycodes[256] =
         { 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15,
          16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
          32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47,
@@ -1073,11 +1075,13 @@ static int emulate_raw(struct vc_data *vc, unsigned int keycode,
                         put_queue(vc, 0x1d | up_flag);
                         put_queue(vc, 0x45 | up_flag);
                         return 0;
-                case KEY_HANGUEL:
-                        if (!up_flag) put_queue(vc, 0xf1);
+                case KEY_HANGEUL:
+                        if (!up_flag)
+                                put_queue(vc, 0xf2);
                         return 0;
                 case KEY_HANJA:
-                        if (!up_flag) put_queue(vc, 0xf2);
+                        if (!up_flag)
+                                put_queue(vc, 0xf1);
                         return 0;
         }
 
@@ -1142,7 +1146,7 @@ static void kbd_keycode(unsigned int keycode, int down,
         kbd = kbd_table + fg_console;
 
         if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT)
-                sysrq_alt = down;
+                sysrq_alt = down ? keycode : 0;
 #ifdef CONFIG_SPARC
         if (keycode == KEY_STOP)
                 sparc_l1_a_state = down;
@@ -1162,9 +1166,14 @@ static void kbd_keycode(unsigned int keycode, int down,
 
 #ifdef CONFIG_MAGIC_SYSRQ              /* Handle the SysRq Hack */
         if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) {
-                sysrq_down = down;
+                if (!sysrq_down) {
+                        sysrq_down = down;
+                        sysrq_alt_use = sysrq_alt;
+                }
                 return;
         }
+        if (sysrq_down && !down && keycode == sysrq_alt_use)
+                sysrq_down = 0;
         if (sysrq_down && down && !rep) {
                 handle_sysrq(kbd_sysrq_xlate[keycode], regs, tty);
                 return;