added state_free at error conditions, which were not handled before..

gtests/net/packetdrill/code.c

@@ -618,6 +618,7 @@ void run_code_event(struct state *state, struct event *event,
 	return;
 
 error_out:
+	state_free(state);
 	die("%s:%d: runtime error in code: %s\n",
 	    state->config->script_path, event->line_number, error);
 	free(error);

gtests/net/packetdrill/run.c

@@ -401,6 +401,7 @@ static void run_local_packet_event(struct state *state, struct event *event,
 		fprintf(stderr, "%s", error);
 		free(error);
 	} else if (result == STATUS_ERR) {
+		state_free(state);
 		die("%s", error);
 	}
 }
@@ -588,6 +589,7 @@ void run_script(struct config *config, struct script *script)
 		wire_client_next_event(state->wire_client, NULL);
 
 	if (code_execute(state->code, &error)) {
+		state_free(state);
 		die("%s: error executing code: %s\n",
 		    state->config->script_path, error);
 		free(error);

gtests/net/packetdrill/run_command.c

@@ -48,6 +48,7 @@ void run_command_event(
 	return;
 
 error_out:
+	state_free(state);
 	die("%s:%d: error executing `%s` command: %s\n",
 	    state->config->script_path, event->line_number,
 	    command->command_line, error);

gtests/net/packetdrill/run_system_call.c

@@ -1958,6 +1958,7 @@ static void invoke_system_call(
 	return;
 
 error_out:
+	state_free(state);
 	die("%s:%d: runtime error in %s call: %s\n",
 	    state->config->script_path, event->line_number,
 	    syscall->name, error);
@@ -2058,6 +2059,7 @@ static void enqueue_system_call(
 	return;
 
 error_out:
+	state_free(state);
 	die("%s:%d: runtime error in %s call: %s\n",
 	    state->config->script_path, event->line_number,
 	    syscall->name, error);