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[4/4] netback: correct netbk_tx_err to handle wrap around.

Message ID 1360171098-1240-4-git-send-email-ian.campbell@citrix.com
State Changes Requested, archived
Delegated to: David Miller
Headers show

Commit Message

Ian Campbell Feb. 6, 2013, 5:18 p.m. UTC 
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Jan Beulich <JBeulich@suse.com>
---
 drivers/net/xen-netback/netback.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
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Patch

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 1a99288..28d5e06 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);