From d5b2f3542a1f9c7b5092816b87db08e9f08f1551 Mon Sep 17 00:00:00 2001
From: Ian Campbell <Ian.Campbell@citrix.com>
Date: Wed, 6 Feb 2013 23:41:38 +0000
Subject: netback: correct netbk_tx_err to handle wrap around.
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);