[PATCH] vdpa: fix gcc cvq_isolated uninitialized variable warning

[Stefan Hajnoczi <stefanha@redhat.com>]

gcc 13.2.1 emits the following warning:

  net/vhost-vdpa.c: In function ‘net_vhost_vdpa_init.constprop’:
  net/vhost-vdpa.c:1394:25: error: ‘cvq_isolated’ may be used uninitialized [-Werror=maybe-uninitialized]
   1394 |         s->cvq_isolated = cvq_isolated;
        |         ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~
  net/vhost-vdpa.c:1355:9: note: ‘cvq_isolated’ was declared here
   1355 |     int cvq_isolated;
        |         ^~~~~~~~~~~~
  cc1: all warnings being treated as errors

Cc: Eugenio Pérez <eperezma@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 net/vhost-vdpa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 34202ca009..7eaee841aa 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -1352,7 +1352,7 @@ static NetClientState *net_vhost_vdpa_init(NetClientState *peer,
     VhostVDPAState *s;
     int ret = 0;
     assert(name);
-    int cvq_isolated;
+    int cvq_isolated = 0;
 
     if (is_datapath) {
         nc = qemu_new_net_client(&net_vhost_vdpa_info, peer, device,
-- 
2.41.0