submodule--helper: "struct pathspec" memory leak in module_update()

The module_update() function calls module_list_compute() twice, which
in turn will reset the "struct pathspec" passed to it. Let's instead
track two of them, and clear them both.

Signed-off-by: Ævar Arnfjörð Bjarmason <[email protected]>
Reviewed-by: Glen Choo <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: avar

builtin/submodule--helper.c

@@ -2561,6 +2561,7 @@ static int update_submodules(struct update_data *update_data)
 static int module_update(int argc, const char **argv, const char *prefix)
 {
 	struct pathspec pathspec = { 0 };
+	struct pathspec pathspec2 = { 0 };
 	struct update_data opt = UPDATE_DATA_INIT;
 	struct list_objects_filter_options filter_options = { 0 };
 	int ret;
@@ -2649,7 +2650,7 @@ static int module_update(int argc, const char **argv, const char *prefix)
 		struct init_cb info = INIT_CB_INIT;
 
 		if (module_list_compute(argc, argv, opt.prefix,
-					&pathspec, &list) < 0) {
+					&pathspec2, &list) < 0) {
 			ret = 1;
 			goto cleanup;
 		}
@@ -2672,6 +2673,7 @@ static int module_update(int argc, const char **argv, const char *prefix)
 cleanup:
 	list_objects_filter_release(&filter_options);
 	clear_pathspec(&pathspec);
+	clear_pathspec(&pathspec2);
 	return ret;
 }