[PATCH 15/21] KGDB: Fix possibility of missing SysRq-G

From: Jason Wessel
Date: Mon Oct 15 2007 - 14:41:48 EST


Signed-off-by: Jason Wessel <jason.wessel@xxxxxxxxxxxxx>
sysrq_bugfix.patch

From: Jason Wessel <jason.wessel@xxxxxxxxxxxxx>
Subject: [PATCH] Fix possibility of missing SysRq-G

It is possible that when SysRq-G is triggered via the keyboard that we
will miss the "up" event and once KGDB lets the kernel go another
SysRq will be required to clear this, without this change.

Signed-off-by: Tom Rini <trini@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jason Wessel <jason.wessel@xxxxxxxxxxxxx>
---
drivers/char/keyboard.c | 1 +
1 file changed, 1 insertion(+)

Index: linux-2.6.21.1/drivers/char/keyboard.c
===================================================================
--- linux-2.6.21.1.orig/drivers/char/keyboard.c
+++ linux-2.6.21.1/drivers/char/keyboard.c
@@ -1176,6 +1176,7 @@ static void kbd_keycode(unsigned int key
sysrq_down = 0;
if (sysrq_down && down && !rep) {
handle_sysrq(kbd_sysrq_xlate[keycode], tty);
+ sysrq_down = 0; /* In case we miss the 'up' event. */
return;
}
#endif