Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965658AbaLKXbX (ORCPT ); Thu, 11 Dec 2014 18:31:23 -0500 Received: from mail-pa0-f42.google.com ([209.85.220.42]:62703 "EHLO mail-pa0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758330AbaLKXbV (ORCPT ); Thu, 11 Dec 2014 18:31:21 -0500 From: Jeremiah Mahler To: Johan Hovold Cc: Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Jeremiah Mahler Subject: [PATCH 0/2] usb: serial: handle -ENODEV and -EPROTO quietly Date: Thu, 11 Dec 2014 15:29:52 -0800 Message-Id: <1418340594-30469-1-git-send-email-jmmahler@gmail.com> X-Mailer: git-send-email 2.1.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If a USB serial device (e.g. /dev/ttyUSB0) with an active program is unplugged, a bunch of -ENODEV and -EPROTO errors will be produced in the logs. This patch set quiets these messages without changing the original behavior. This change is beneficial when using daemons such as slcand, which is similar to pppd or slip, that cannot determine whether they should exit until after the USB serial device is unplugged. Producing these error messages for a normal use case is not helpful. Jeremiah Mahler (2): usb: serial: handle -EPROTO quietly in generic_read_bulk usb: serial: handle -ENODEV quietly in generic_submit_read_urb drivers/usb/serial/generic.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) -- 2.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/