diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 5afce60e1b68e46bca602eeaf87569064260b1c8..2078b86750e0507d27bb1655bd5ef59819cfa338 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4928,7 +4928,7 @@ tracing_mark_write(struct file *filp, const char __user *ubuf,
 	*fpos += written;
 
  out_unlock:
-	for (i = 0; i < nr_pages; i++){
+	for (i = nr_pages - 1; i >= 0; i--) {
 		kunmap_atomic(map_page[i]);
 		put_page(pages[i]);
 	}