[PATCH] git: add git_mkstemp()

diff --git a/diff.c b/diff.c
index 4a4b62191284a2289631c01b3a2885387f59a8c0..361d7c09ddfad2cb7e1589367ec74bad8f9ca67d 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -377,8 +377,10 @@ int diff_populate_filespec(struct diff_filespec *s, int size_only)
                if (fd < 0)
                        goto err_empty;
                s->data = mmap(NULL, s->size, PROT_READ, MAP_PRIVATE, fd, 0);
-               s->should_munmap = 1;
                close(fd);
+               if (s->data == MAP_FAILED)
+                       goto err_empty;
+               s->should_munmap = 1;
        }
        else {
                char type[20];