Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752954AbaLTJMQ (ORCPT ); Sat, 20 Dec 2014 04:12:16 -0500 Received: from mail-pd0-f178.google.com ([209.85.192.178]:56824 "EHLO mail-pd0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752913AbaLTJMI (ORCPT ); Sat, 20 Dec 2014 04:12:08 -0500 From: Jeremiah Mahler To: Johan Hovold Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, Jeremiah Mahler Subject: [PATCH v2 1/2] usb: serial: handle -EPROTO quietly in generic_read_bulk Date: Sat, 20 Dec 2014 01:11:37 -0800 Message-Id: <1419066698-2684-2-git-send-email-jmmahler@gmail.com> X-Mailer: git-send-email 2.1.3 In-Reply-To: <1419066698-2684-1-git-send-email-jmmahler@gmail.com> References: <1418340594-30469-1-git-send-email-jmmahler@gmail.com> <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 If a USB serial device driver, which is built using the generic serial driver, is unplugged while there is an active program using the device, it will spam the logs with -EPROTO (71) messages as it attempts to retry. Most serial usb drivers (metro-usb, pl2303, mos7840, ...) only output these messages for debugging. The generic driver treats these as errors. Change the default output for the generic serial driver from error to debug. Signed-off-by: Jeremiah Mahler --- drivers/usb/serial/generic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index 1bd1922..2d7207b 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -373,7 +373,7 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb) __func__, urb->status); return; default: - dev_err(&port->dev, "%s - nonzero urb status: %d\n", + dev_dbg(&port->dev, "%s - nonzero urb status: %d\n", __func__, urb->status); goto resubmit; } -- 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/