Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart

[firefly-linux-kernel-4.4.55.git] / drivers / char / keyboard.c

diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 6cb85dcbbc83d2e490ab24f0b620f41338edc20f..4bb3d22726046fbcc4cd7cbbb4dbd69ce15b9edb 100644 (file)
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -151,6 +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;
 
@@ -1145,7 +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;
@@ -1165,9 +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;