From bf1524d1951ba0803ed2ae361ad928481a5b5323 Mon Sep 17 00:00:00 2001
From: David Schleef <ds@schleef.org>
Date: Mon, 13 Aug 2001 10:26:57 +0000
Subject: [PATCH] Add error to check if included directly

---
 include/linux/comedi_rt.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/linux/comedi_rt.h b/include/linux/comedi_rt.h
index 5d4a030c..bcea825c 100644
--- a/include/linux/comedi_rt.h
+++ b/include/linux/comedi_rt.h
@@ -24,6 +24,10 @@
 #ifndef _COMEDI_RT_H
 #define _COMEDI_RT_H
 
+#ifndef _COMEDIDEV_H
+#error comedi_rt.h should only be included by comedidev.h
+#endif
+
 #include <linux/version.h>
 #include <linux/config.h>
 #include <linux/kdev_t.h>
@@ -31,7 +35,6 @@
 #include <linux/malloc.h>
 #include <linux/errno.h>
 #include <linux/spinlock.h>
-#include <linux/comedidev.h>
 
 #ifdef CONFIG_COMEDI_RT
 
-- 
2.26.2