submodule: whitespace fix

diff --git a/diff-lib.c b/diff-lib.c
index 2e09500c8210e22d6c81484aa198f1d811a9933d..b3797592c63a86b46a3af0d875b6fe04ea43f536 100644 (file)
--- a/diff-lib.c
+++ b/diff-lib.c
@@ -379,7 +379,8 @@ static void do_oneway_diff(struct unpack_trees_options *o,
        if (cached && idx && ce_stage(idx)) {
                struct diff_filepair *pair;
                pair = diff_unmerge(&revs->diffopt, idx->name);
-               fill_filespec(pair->one, idx->sha1, idx->ce_mode);
+               if (tree)
+                       fill_filespec(pair->one, tree->sha1, tree->ce_mode);
                return;
        }