[PULL v3 52/55] virtio/vhost-vsock: don't double close vhostfd, remove redundant cleanup

["Michael S. Tsirkin" <mst@redhat.com>]

From: Daniil Tatianin <d-tatianin@yandex-team.ru>

In case of an error during initialization in vhost_dev_init, vhostfd is
closed in vhost_dev_cleanup. Remove close from err_virtio as it's both
redundant and causes a double close on vhostfd.

Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Message-Id: <20211129125204.1108088-1-d-tatianin@yandex-team.ru>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/virtio/vhost-vsock.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/hw/virtio/vhost-vsock.c b/hw/virtio/vhost-vsock.c
index 478c0c9a87..433d42d897 100644
--- a/hw/virtio/vhost-vsock.c
+++ b/hw/virtio/vhost-vsock.c
@@ -171,6 +171,10 @@ static void vhost_vsock_device_realize(DeviceState *dev, Error **errp)
     ret = vhost_dev_init(&vvc->vhost_dev, (void *)(uintptr_t)vhostfd,
                          VHOST_BACKEND_TYPE_KERNEL, 0, errp);
     if (ret < 0) {
+        /*
+         * vhostfd is closed by vhost_dev_cleanup, which is called
+         * by vhost_dev_init on initialization error.
+         */
         goto err_virtio;
     }
 
@@ -183,15 +187,10 @@ static void vhost_vsock_device_realize(DeviceState *dev, Error **errp)
     return;
 
 err_vhost_dev:
-    vhost_dev_cleanup(&vvc->vhost_dev);
     /* vhost_dev_cleanup() closes the vhostfd passed to vhost_dev_init() */
-    vhostfd = -1;
+    vhost_dev_cleanup(&vvc->vhost_dev);
 err_virtio:
     vhost_vsock_common_unrealize(vdev);
-    if (vhostfd >= 0) {
-        close(vhostfd);
-    }
-    return;
 }
 
 static void vhost_vsock_device_unrealize(DeviceState *dev)
-- 
MST