settings_ui() now returns a status code.

src/hci/commands/config_cmd.c

 
 static int config_exec ( int argc, char **argv ) {
 	struct config_context dummy_context;
+	int rc;
 
 	if ( argc != 1 ) {
 		printf ( "Usage: %s\n"
 	}
 
 	dummy_context.options = ugly_nvo_hack->options;
-	settings_ui ( &dummy_context );
+	if ( ( rc = settings_ui ( &dummy_context ) ) != 0 ) {
+		printf ( "Could not save settings: %s\n",
+			 strerror ( rc ) );
+		return 1;
+	}
 
 	return 0;
 }

src/hci/tui/settings_ui.c

 	}
 }
 
-static void main_loop ( struct config_context *context ) {
+static int main_loop ( struct config_context *context ) {
 	struct setting_widget widget;
 	unsigned int current = 0;
 	unsigned int next;
 					alert ( " Could not save options: %s ",
 						strerror ( rc ) );
 				}
-				return;
+				return rc;
 			default:
 				edit_setting ( &widget, key );
 				break;
 	
 }
 
-void settings_ui ( struct config_context *context ) {
+int settings_ui ( struct config_context *context ) {
+	int rc;
+
 	initscr();
 	start_color();
 	init_pair ( CPAIR_NORMAL, COLOR_WHITE, COLOR_BLUE );
 	color_set ( CPAIR_NORMAL, NULL );
 	erase();
 	
-	main_loop ( context );
+	rc = main_loop ( context );
 
 	endwin();
+
+	return rc;
 }

src/include/gpxe/settings_ui.h

 
 struct config_context;
 
-extern void settings_ui ( struct config_context *context );
+extern int settings_ui ( struct config_context *context );
 
 #endif /* _GPXE_SETTINGS_UI_H */