[RFC PATCH v2 05/10] vdpa: factor out stop path of vhost_vdpa_dev_start

[Eugenio Pérez]

This makes easier to build an error path in next patches.  No functional
change.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
 hw/virtio/vhost-vdpa.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index 57a8043cd4..449c3794b2 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -1302,7 +1302,7 @@ static void vhost_vdpa_suspend(struct vhost_dev *dev)
 static int vhost_vdpa_dev_start(struct vhost_dev *dev, bool started)
 {
     struct vhost_vdpa *v = dev->opaque;
-    bool ok;
+    bool ok = true;
     trace_vhost_vdpa_dev_start(dev, started);
 
     if (started) {
@@ -1313,8 +1313,7 @@ static int vhost_vdpa_dev_start(struct vhost_dev *dev, 
bool started)
         }
     } else {
         vhost_vdpa_suspend(dev);
-        vhost_vdpa_svqs_stop(dev);
-        vhost_vdpa_host_notifiers_uninit(dev, dev->nvqs);
+        goto out_stop;
     }
 
     if (dev->vq_index + dev->nvqs != dev->vq_index_end) {
@@ -1333,6 +1332,11 @@ static int vhost_vdpa_dev_start(struct vhost_dev *dev, 
bool started)
     }
 
     return 0;
+
+out_stop:
+    vhost_vdpa_svqs_stop(dev);
+    vhost_vdpa_host_notifiers_uninit(dev, dev->nvqs);
+    return ok ? 0 : -1;
 }
 
 static void vhost_vdpa_reset_status(struct vhost_dev *dev)
-- 
2.39.3