From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753089AbbAKApO (ORCPT ); Sat, 10 Jan 2015 19:45:14 -0500 Received: from mail-yh0-f45.google.com ([209.85.213.45]:47283 "EHLO mail-yh0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751583AbbAKApM (ORCPT ); Sat, 10 Jan 2015 19:45:12 -0500 From: Jeremiah Mahler To: Johan Hovold Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Jeremiah Mahler Subject: [RESEND PATCH v2 0/2] usb: serial: handle -ENODEV and -EPROTO quietly Date: Sat, 10 Jan 2015 16:44:31 -0800 Message-Id: <1420937073-20835-1-git-send-email-jmmahler@gmail.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1419066698-2684-1-git-send-email-jmmahler@gmail.com> References: <1419066698-2684-1-git-send-email-jmmahler@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org (Jan 15) Just a resend of v2 [1]. [1]: https://lkml.org/lkml/2014/12/20/16 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 | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) -- 2.1.4