From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Ian Campbell <ian.campbell@citrix.com>,
	Jan Beulich <JBeulich@suse.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: [ 42/61] netback: correct netbk_tx_err to handle wrap around.
Date: Tue, 12 Feb 2013 12:35:02 -0800
Message-Id: <20130212203423.762980310@linuxfoundation.org>
In-Reply-To: <20130212203417.890993903@linuxfoundation.org>
References: <20130212203417.890993903@linuxfoundation.org>
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <stable.vger.kernel.org>

3.7-stable review patch.  If anyone has any objections, please let me know.

------------------


From: Ian Campbell <Ian.Campbell@citrix.com>

[ Upstream commit b9149729ebdcfce63f853aa54a404c6a8f6ebbf3 ]

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/xen-netback/netback.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -880,7 +880,7 @@ static void netbk_tx_err(struct xenvif *
 
 	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);