From f5dec51172b81db226a23f309bc737ad021af35b Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Wed, 9 Jun 2010 08:13:06 -0700
Subject: [PATCH] Input: sysrq - fix "stuck" SysRq mode
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This shoud fix the problem with SysRq mode staying half-way enabled
and interfereing with normal PrtScrn operation after user presses ALT
for the first time.

Reported-and-tested-by: Éric Piel <E.A.B.Piel@tudelft.nl>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/char/sysrq.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 5d15630a5830..5d64e3acb000 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -580,8 +580,12 @@ static bool sysrq_filter(struct input_handle *handle, unsigned int type,
 	case KEY_RIGHTALT:
 		if (value)
 			sysrq_alt = code;
-		else if (sysrq_down && code == sysrq_alt_use)
-			sysrq_down = false;
+		else {
+			if (sysrq_down && code == sysrq_alt_use)
+				sysrq_down = false;
+
+			sysrq_alt = 0;
+		}
 		break;
 
 	case KEY_SYSRQ:
-- 
2.20.1