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

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Submitter Herton Ronaldo Krzesinski
Date Feb. 19, 2013, 6:49 p.m.
Message ID <1361299784-8830-67-git-send-email-herton.krzesinski@canonical.com>
Download mbox | patch
Permalink /patch/221834/
State New
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Comments

Herton Ronaldo Krzesinski - Feb. 19, 2013, 6:49 p.m.
3.5.7.6 -stable review patch.  If anyone has any objections, please let me know.

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

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

commit b9149729ebdcfce63f853aa54a404c6a8f6ebbf3 upstream.

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: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
---
 drivers/net/xen-netback/netback.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

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);