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virtio: reset region cache when on queue deletion

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https://bugzilla.redhat.com/show_bug.cgi?id=1708480
Fix leak of region reference that prevents complete
device deletion on hot unplug.

Cc: qemu-stable@nongnu.org
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Message-Id: <20191226043649.14481-2-yuri.benditovich@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 421afd2fe8)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
This commit is contained in:
Yuri Benditovich
2019-12-26 06:36:48 +02:00
committed by Michael Roth
parent a843731d7f
commit a474197f11
1 changed files with 1 additions and 0 deletions
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hw/virtio/virtio.c
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@@ -2338,6 +2338,7 @@ void virtio_delete_queue(VirtQueue *vq)
vq->handle_aio_output = NULL;
g_free(vq->used_elems);
vq->used_elems = NULL;
virtio_virtqueue_reset_region_cache(vq);
}
void virtio_del_queue(VirtIODevice *vdev, int n)