From: Frank Mori Hess <fmhess@speakeasy.net>
Date: Sun, 21 Mar 2004 17:41:33 +0000 (+0000)
Subject: add a rmb() in mite_bytes_transferred()
X-Git-Tag: r0_7_69~76
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=ef4b4b71f727cf72515ede4da0362d3b152dc33d;p=comedi.git

add a rmb() in mite_bytes_transferred()
---

diff --git a/comedi/drivers/mite.c b/comedi/drivers/mite.c
index 43000a32..fe5dd2b4 100644
--- a/comedi/drivers/mite.c
+++ b/comedi/drivers/mite.c
@@ -53,6 +53,7 @@
 #include <linux/comedidev.h>
 
 #include <linux/pci.h>
+#include <asm/system.h>
 
 #include "mite.h"
 
@@ -348,9 +349,10 @@ unsigned int mite_bytes_transferred(struct mite_struct *mite, unsigned int chan)
 {
 	unsigned int bytes_read;
 
+	bytes_read = mite_bytes_read( mite, chan );
 	/* to avoid race, we want to read bytes read before reading bytes
 	 * in transit */
-	bytes_read = mite_bytes_read( mite, chan );
+	rmb();
 	return bytes_read - mite_bytes_in_transit( mite, chan );
 }