From 891ff65ff50bb6affdaebb2cda3a4c58a6442b4d Mon Sep 17 00:00:00 2001
From: Jes Sorensen <jes@sgi.com>
Date: Mon, 22 Oct 2007 10:56:22 +1000
Subject: [PATCH] Use copy_to_user() not put_user for struct timespec
Use copy_to_user() when copying a struct timespec to the guest -
put_user() cannot handle two long's in one go on a 64bit arch.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jes Sorensen <jes@sgi.com>
Cc: Al Viro <viro@ftp.linux.org.uk>
---
drivers/lguest/hypercalls.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/lguest/hypercalls.c b/drivers/lguest/hypercalls.c
index db6caace3b9c..5ecd60b54201 100644
--- a/drivers/lguest/hypercalls.c
+++ b/drivers/lguest/hypercalls.c
@@ -295,6 +295,6 @@ void write_timestamp(struct lguest *lg)
{
struct timespec now;
ktime_get_real_ts(&now);
- if (put_user(now, &lg->lguest_data->time))
+ if (copy_to_user(&lg->lguest_data->time, &now, sizeof(struct timespec)))
kill_guest(lg, "Writing timestamp");
}
--
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