A couple smatch complaints. drivers/serial/altera_jtaguart.c 380 if (co->index >= 0 && co->index <= ALTERA_JTAGUART_MAXPORTS) 381 co->index = 0; 382 port = &altera_jtaguart_ports[co->index].port; This test seems backward. co->index == -1 would be a buffer underflow. drivers/serial/altera_uart.c 455 if ((co->index >= 0) 456 && (co->index <= CONFIG_SERIAL_ALTERA_UART_MAXPORTS)) 457 co->index = 0; 458 port = &altera_uart_ports[co->index].port; Same here. regards, dan carpenter -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html