Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752979AbaLTJMV (ORCPT ); Sat, 20 Dec 2014 04:12:21 -0500 Received: from mail-pd0-f182.google.com ([209.85.192.182]:40993 "EHLO mail-pd0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752927AbaLTJMN (ORCPT ); Sat, 20 Dec 2014 04:12:13 -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 2/2] usb: serial: handle -ENODEV quietly in generic_submit_read_urb Date: Sat, 20 Dec 2014 01:11:38 -0800 Message-Id: <1419066698-2684-3-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 (e.g. /dev/ttyUSB0) with an active program is unplugged, an -ENODEV (19) error will be produced after it gives up trying to resubmit a read. usb_serial_generic_submit_read_urb - usb_submit_urb failed: -19 Add -ENODEV as one of the permanent errors along with -EPERM that usb_serial_generic_submit_read_urb() handles quietly without an error. 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 2d7207b..ccf1df7 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -286,7 +286,7 @@ static int usb_serial_generic_submit_read_urb(struct usb_serial_port *port, res = usb_submit_urb(port->read_urbs[index], mem_flags); if (res) { - if (res != -EPERM) { + if (res != -EPERM && res != -ENODEV) { dev_err(&port->dev, "%s - usb_submit_urb failed: %d\n", __func__, res); -- 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/