From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754400AbdLLN2q (ORCPT ); Tue, 12 Dec 2017 08:28:46 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:33566 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754136AbdLLM4N (ORCPT ); Tue, 12 Dec 2017 07:56:13 -0500 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jimmy Assarsson , Marc Kleine-Budde Subject: [PATCH 4.9 005/148] can: kvaser_usb: ratelimit errors if incomplete messages are received Date: Tue, 12 Dec 2017 13:43:35 +0100 Message-Id: <20171212124431.433297195@linuxfoundation.org> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20171212124431.207182779@linuxfoundation.org> References: <20171212124431.207182779@linuxfoundation.org> User-Agent: quilt/0.65 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jimmy Assarsson commit 8bd13bd522ff7dfa0eb371921aeb417155f7a3be upstream. Avoid flooding the kernel log with "Formate error", if incomplete message are received. Signed-off-by: Jimmy Assarsson Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/usb/kvaser_usb.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) --- a/drivers/net/can/usb/kvaser_usb.c +++ b/drivers/net/can/usb/kvaser_usb.c @@ -609,8 +609,8 @@ static int kvaser_usb_wait_msg(const str } if (pos + tmp->len > actual_len) { - dev_err(dev->udev->dev.parent, - "Format error\n"); + dev_err_ratelimited(dev->udev->dev.parent, + "Format error\n"); break; } @@ -1353,7 +1353,8 @@ static void kvaser_usb_read_bulk_callbac } if (pos + msg->len > urb->actual_length) { - dev_err(dev->udev->dev.parent, "Format error\n"); + dev_err_ratelimited(dev->udev->dev.parent, + "Format error\n"); break; }