From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:54420 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750890AbeAPPAh (ORCPT ); Tue, 16 Jan 2018 10:00:37 -0500 Subject: patch "USB: cdc-acm: Do not log urb submission errors on disconnect" added to usb-next To: hdegoede@redhat.com, gregkh@linuxfoundation.org, oneukum@suse.com, stable@vger.kernel.org From: Date: Tue, 16 Jan 2018 16:00:30 +0100 Message-ID: <1516114830233133@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled USB: cdc-acm: Do not log urb submission errors on disconnect to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-next branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will also be merged in the next major kernel release during the merge window. If you have any questions about this process, please let me know. >>From f0386c083c2ce85284dc0b419d7b89c8e567c09f Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sun, 14 Jan 2018 16:09:00 +0100 Subject: USB: cdc-acm: Do not log urb submission errors on disconnect When disconnected sometimes the cdc-acm driver logs errors like these: [20278.039417] cdc_acm 2-2:2.1: urb 9 failed submission with -19 [20278.042924] cdc_acm 2-2:2.1: urb 10 failed submission with -19 [20278.046449] cdc_acm 2-2:2.1: urb 11 failed submission with -19 [20278.049920] cdc_acm 2-2:2.1: urb 12 failed submission with -19 [20278.053442] cdc_acm 2-2:2.1: urb 13 failed submission with -19 [20278.056915] cdc_acm 2-2:2.1: urb 14 failed submission with -19 [20278.060418] cdc_acm 2-2:2.1: urb 15 failed submission with -19 Silence these by not logging errors when the result is -ENODEV. Signed-off-by: Hans de Goede Acked-by: Oliver Neukum Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-acm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 8e0636c963a7..6c64ab6e80fa 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -425,7 +425,7 @@ static int acm_submit_read_urb(struct acm *acm, int index, gfp_t mem_flags) res = usb_submit_urb(acm->read_urbs[index], mem_flags); if (res) { - if (res != -EPERM) { + if (res != -EPERM && res != -ENODEV) { dev_err(&acm->data->dev, "urb %d failed submission with %d\n", index, res); -- 2.15.1