submodule.c: use the right index instead of the_index

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/submodule.c b/submodule.c
index 293efc2..50cbf5f 100644
--- a/submodule.c
+++ b/submodule.c
@@ -93,7 +93,7 @@ int update_path_in_gitmodules(const char *oldpath, const char *newpath)
 	if (!file_exists(GITMODULES_FILE)) /* Do nothing without .gitmodules */
 		return -1;
 
-	if (is_gitmodules_unmerged(&the_index))
+	if (is_gitmodules_unmerged(the_repository->index))
 		die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first"));
 
 	submodule = submodule_from_path(the_repository, &null_oid, oldpath);
@@ -127,7 +127,7 @@ int remove_path_from_gitmodules(const char *path)
 	if (!file_exists(GITMODULES_FILE)) /* Do nothing without .gitmodules */
 		return -1;
 
-	if (is_gitmodules_unmerged(&the_index))
+	if (is_gitmodules_unmerged(the_repository->index))
 		die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first"));
 
 	submodule = submodule_from_path(the_repository, &null_oid, path);
@@ -188,7 +188,7 @@ void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
 
 		if (ignore)
 			handle_ignore_submodules_arg(diffopt, ignore);
-		else if (is_gitmodules_unmerged(&the_index))
+		else if (is_gitmodules_unmerged(the_repository->index))
 			diffopt->flags.ignore_submodules = 1;
 	}
 }
@@ -258,7 +258,7 @@ int is_submodule_active(struct repository *repo, const char *path)
 		}
 
 		parse_pathspec(&ps, 0, 0, NULL, args.argv);
-		ret = match_pathspec(&the_index, &ps, path, strlen(path), 0, NULL, 1);
+		ret = match_pathspec(repo->index, &ps, path, strlen(path), 0, NULL, 1);
 
 		argv_array_clear(&args);
 		clear_pathspec(&ps);