Fix potential leak and improve readability

Signed-off-by: y-okumura-isp <[email protected]>

Author: y-okumura-isp

rcl/src/rcl/arguments.c

@@ -962,12 +962,10 @@ rcl_arguments_copy(
 
   rcl_allocator_t allocator = args->impl->allocator;
 
-  do {
-    rcl_ret_t ret = _rcl_allocate_initialized_arguments_impl(args_out, &allocator);
-    if (RCL_RET_OK != ret) {
-      return ret;
-    }
-  } while(false);
+  rcl_ret_t ret = _rcl_allocate_initialized_arguments_impl(args_out, &allocator);
+  if (RCL_RET_OK != ret) {
+    return ret;
+  }
 
   if (args->impl->num_unparsed_args) {
     // Copy unparsed args
@@ -1014,7 +1012,7 @@ rcl_arguments_copy(
     args_out->impl->num_remap_rules = args->impl->num_remap_rules;
     for (int i = 0; i < args->impl->num_remap_rules; ++i) {
       args_out->impl->remap_rules[i] = rcl_get_zero_initialized_remap();
-      rcl_ret_t ret = rcl_remap_copy(
+      ret = rcl_remap_copy(
         &(args->impl->remap_rules[i]), &(args_out->impl->remap_rules[i]));
       if (RCL_RET_OK != ret) {
         if (RCL_RET_OK != rcl_arguments_fini(args_out)) {
@@ -1102,8 +1100,8 @@ rcl_arguments_fini(
     }
 
     if (NULL != args->impl->external_log_config_file) {
-      args->impl->allocator.deallocate(args->impl->external_log_config_file,
-                                       args->impl->allocator.state);
+      args->impl->allocator.deallocate(
+        args->impl->external_log_config_file, args->impl->allocator.state);
       args->impl->external_log_config_file = NULL;
     }
 

rcl_yaml_param_parser/src/parser.c

@@ -1343,13 +1343,12 @@ static rcutils_ret_t parse_key(
           }
 
           ret = find_node(node_name_ns, params_st, node_idx);
+          allocator.deallocate(node_name_ns, allocator.state);
           if (RCUTILS_RET_OK != ret) {
             break;
           }
 
-          allocator.deallocate(node_name_ns, allocator.state);
-
-	  ret = rem_name_from_ns(ns_tracker, NS_TYPE_NODE, allocator);
+          ret = rem_name_from_ns(ns_tracker, NS_TYPE_NODE, allocator);
           if (RCUTILS_RET_OK != ret) {
             RCUTILS_SET_ERROR_MSG_WITH_FORMAT_STRING(
               "Internal error adding node namespace at line %d", line_num);