[PATCH 66/81] netback: correct netbk_tx_err to handle wrap around.

From: Herton Ronaldo Krzesinski
Date: Tue Feb 19 2013 - 13:59:42 EST


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

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

From: Ian Campbell <Ian.Campbell@xxxxxxxxxx>

commit b9149729ebdcfce63f853aa54a404c6a8f6ebbf3 upstream.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Acked-by: Jan Beulich <JBeulich@xxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@xxxxxxxxxxxxx>
---
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);
--
1.7.9.5

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