commit 7406f4230c4d086793cc62fa657750abf98559d6
author Ian Campbell <Ian.Campbell@citrix.com> Wed Feb 06 23:41:38 2013 +0000
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Thu Feb 14 10:47:45 2013 -0800
tree 336e02ba361303bfb8d47bae00467997452d2676
parent 1d08d86d53d881952af35f841d8cf5ff23f726d9

netback: correct netbk_tx_err to handle wrap around.

[ 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

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 40e8a33..9068d32d 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -839,7 +839,7 @@
 
 	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);