From patchwork Tue Feb 19 18:49:29 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herton Ronaldo Krzesinski X-Patchwork-Id: 221834 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from chlorine.canonical.com (chlorine.canonical.com [91.189.94.204]) by ozlabs.org (Postfix) with ESMTP id 4A0F02C0358 for ; Wed, 20 Feb 2013 05:54:27 +1100 (EST) Received: from localhost ([127.0.0.1] helo=chlorine.canonical.com) by chlorine.canonical.com with esmtp (Exim 4.71) (envelope-from ) id 1U7sKY-0005tl-0N; Tue, 19 Feb 2013 18:54:18 +0000 Received: from youngberry.canonical.com ([91.189.89.112]) by chlorine.canonical.com with esmtp (Exim 4.71) (envelope-from ) id 1U7sKU-0005sJ-PD for kernel-team@lists.ubuntu.com; Tue, 19 Feb 2013 18:54:14 +0000 Received: from [177.16.121.6] (helo=canonical.com) by youngberry.canonical.com with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1U7sKT-0002Ao-W0; Tue, 19 Feb 2013 18:54:14 +0000 From: Herton Ronaldo Krzesinski To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Subject: [PATCH 66/81] netback: correct netbk_tx_err to handle wrap around. Date: Tue, 19 Feb 2013 15:49:29 -0300 Message-Id: <1361299784-8830-67-git-send-email-herton.krzesinski@canonical.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1361299784-8830-1-git-send-email-herton.krzesinski@canonical.com> References: <1361299784-8830-1-git-send-email-herton.krzesinski@canonical.com> X-Extended-Stable: 3.5 Cc: Ian Campbell , "David S. Miller" X-BeenThere: kernel-team@lists.ubuntu.com X-Mailman-Version: 2.1.13 Precedence: list List-Id: Kernel team discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: kernel-team-bounces@lists.ubuntu.com Errors-To: kernel-team-bounces@lists.ubuntu.com 3.5.7.6 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Ian Campbell commit b9149729ebdcfce63f853aa54a404c6a8f6ebbf3 upstream. Signed-off-by: Ian Campbell Acked-by: Jan Beulich Signed-off-by: David S. Miller Signed-off-by: Herton Ronaldo Krzesinski --- drivers/net/xen-netback/netback.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index c503a58..f3c3a68 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -851,7 +851,7 @@ static void netbk_tx_err(struct xenvif *vif, do { make_tx_response(vif, txp, XEN_NETIF_RSP_ERROR); - if (cons >= end) + if (cons == end) break; txp = RING_GET_REQUEST(&vif->tx, cons++); } while (1);