[PULL 31/35] vhost-vdpa: don't cleanup twice in vhost_vdpa_add()

[Michael S. Tsirkin]

From: Jason Wang <jasowang@redhat.com>

The previous vhost_net_cleanup is sufficient for freeing, calling
vhost_vdpa_del() in this case will lead an extra round of free. Note
that this kind of "double free" is safe since vhost_dev_cleanup() zero
the whole structure.

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20210903091031.47303-8-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 net/vhost-vdpa.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c
index 5c09cacd5a..3213e69d63 100644
--- a/net/vhost-vdpa.c
+++ b/net/vhost-vdpa.c
@@ -81,16 +81,6 @@ static int vhost_vdpa_net_check_device_id(struct vhost_net 
*net)
     return ret;
 }
 
-static void vhost_vdpa_del(NetClientState *ncs)
-{
-    VhostVDPAState *s;
-    assert(ncs->info->type == NET_CLIENT_DRIVER_VHOST_VDPA);
-    s = DO_UPCAST(VhostVDPAState, nc, ncs);
-    if (s->vhost_net) {
-        vhost_net_cleanup(s->vhost_net);
-    }
-}
-
 static int vhost_vdpa_add(NetClientState *ncs, void *be)
 {
     VhostNetOptions options;
@@ -121,7 +111,6 @@ err:
     if (net) {
         vhost_net_cleanup(net);
     }
-    vhost_vdpa_del(ncs);
     return -1;
 }
 
-- 
MST