[Xen-devel] [PATCH v2 4/4] netback: correct netbk_tx_err to handle wrap around.

[Ian Campbell <ian.campbell@xxxxxxxxxx>]

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Acked-by: Jan Beulich <JBeulich@xxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # 3.0+
---
 drivers/net/xen-netback/netback.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c 
b/drivers/net/xen-netback/netback.c
index dcb2d4d..2b9520c 100644
--- 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 *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);
-- 
1.7.2.5


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