Get rid of unnecessary barrier. Improve comment.

[pintos-anon] / grading / vm / mmap-shuffle.c

diff --git a/grading/vm/mmap-shuffle.c b/grading/vm/mmap-shuffle.c
index ae16f4a206fb565809f2d7012fa85bbaafb01153..15a37f438f26feb8ad5a047ef5f81a972624fb87 100644 (file)
--- a/grading/vm/mmap-shuffle.c
+++ b/grading/vm/mmap-shuffle.c
@@ -72,7 +72,7 @@ main (void)
       return 1;
     }
 
-  if (!mmap (fd, buf, SIZE))
+  if (mmap (fd, buf) == MAP_FAILED)
     {
       printf ("(mmap-shuffle) mmap() failed\n");
       return 1;