virtio: check virtio_load return code

Otherwise we crash on error.

Signed-off-by: Ulrich Obergfell <uobergfe@redhat.com>
Signed-off-by: Orit Wassermann <owasserm@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c
index ffbdfc2de1..72287d10ce 100644
--- a/hw/virtio-serial-bus.c
+++ b/hw/virtio-serial-bus.c
@@ -637,13 +637,17 @@ static int virtio_serial_load(QEMUFile *f, void *opaque, int version_id)
     VirtIOSerialPort *port;
     uint32_t max_nr_ports, nr_active_ports, ports_map;
     unsigned int i;
+    int ret;
 
     if (version_id > 3) {
         return -EINVAL;
     }
 
     /* The virtio device */
-    virtio_load(&s->vdev, f);
+    ret = virtio_load(&s->vdev, f);
+    if (ret) {
+        return ret;
+    }
 
     if (version_id < 2) {
         return 0;