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[PULL 24/56] virtio-balloon: unref the iothread when unrealizing


From: Michael S. Tsirkin
Subject: [PULL 24/56] virtio-balloon: unref the iothread when unrealizing
Date: Wed, 10 Jun 2020 00:27:26 -0400

From: David Hildenbrand <david@redhat.com>

We took a reference when realizing, so let's drop that reference when
unrealizing.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Fixes: c13c4153f76d ("virtio-balloon: VIRTIO_BALLOON_F_FREE_PAGE_HINT")
Cc: qemu-stable@nongnu.org
Cc: Wei Wang <wei.w.wang@intel.com>
Cc: Alexander Duyck <alexander.duyck@gmail.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20200520100439.19872-4-david@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/virtio/virtio-balloon.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index 32e9fe3f64..cff8eab6a1 100644
--- a/hw/virtio/virtio-balloon.c
+++ b/hw/virtio/virtio-balloon.c
@@ -820,6 +820,7 @@ static void virtio_balloon_device_unrealize(DeviceState 
*dev)
 
     if (s->free_page_bh) {
         qemu_bh_delete(s->free_page_bh);
+        object_unref(OBJECT(s->iothread));
         virtio_balloon_free_page_stop(s);
         precopy_remove_notifier(&s->free_page_report_notify);
     }
-- 
MST




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