--- zzzz-none-000/linux-2.6.19.2/drivers/char/keyboard.c	2007-01-10 19:10:37.000000000 +0000
+++ davinci-8020-5504/linux-2.6.19.2/drivers/char/keyboard.c	2007-01-19 14:42:56.000000000 +0000
@@ -203,7 +203,7 @@
 
 	if (scancode >= dev->keycodemax)
 		return -EINVAL;
-	if (keycode < 0 || keycode > KEY_MAX)
+	if (keycode > KEY_MAX)
 		return -EINVAL;
 	if (dev->keycodesize < sizeof(keycode) && (keycode >> (dev->keycodesize * 8)))
 		return -EINVAL;
@@ -628,6 +628,16 @@
 	     kbd->kbdmode == VC_MEDIUMRAW) &&
 	     value != KVAL(K_SAK))
 		return;		/* SAK is allowed even in raw mode */
+
+#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP)
+	{
+		void *func = fn_handler[value];
+		if (func == fn_show_state || func == fn_show_ptregs ||
+		    func == fn_show_mem)
+			return;
+	}
+#endif
+
 	fn_handler[value](vc);
 }