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 <[email protected]> Signed-off-by: Rusty Russell <[email protected]> Cc: Jes Sorensen <[email protected]> Cc: Al Viro <[email protected]>
josf · Oct 23, 2007 · 891ff65 · 891ff65
1 parent babed5c
commit 891ff65
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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");
 }