From: Jason Wang <jasowang@redhat.com>
Date: Thu, 23 Apr 2015 06:21:34 +0000 (+0800)
Subject: virtio-net: fix the upper bound when trying to delete queues
X-Git-Tag: v2.3.1~56
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cf6c213981de2a54154b13fecee58e6cdc5aa504;p=thirdparty%2Fqemu.git

virtio-net: fix the upper bound when trying to delete queues

Virtqueue were indexed from zero, so don't delete virtqueue whose
index is n->max_queues * 2 + 1.

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: qemu-stable <qemu-stable@nongnu.org>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

(cherry picked from commit 27a46dcf5038e20451101ed2d5414aebf3846e27)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index 59f76bcf767..b6fac9cc2ba 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -1309,7 +1309,7 @@ static void virtio_net_set_multiqueue(VirtIONet *n, int multiqueue)
 
     n->multiqueue = multiqueue;
 
-    for (i = 2; i <= n->max_queues * 2 + 1; i++) {
+    for (i = 2; i < n->max_queues * 2 + 1; i++) {
         virtio_del_queue(vdev, i);
     }