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vhost: fix calling vhost_dev_cleanup() after vhost_dev_init()
vhost_net_init() calls vhost_dev_init() and in case of failure, calls vhost_dev_cleanup() directly. However, the structure is already partially cleaned on error. Calling vhost_dev_cleanup() again will call vhost_virtqueue_cleanup() on already clean queues, and causing potential double-close. Instead, adjust dev->nvqs and simplify vhost_dev_init() code to not call vhost_virtqueue_cleanup() but vhost_dev_cleanup() instead. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Ilya Maximets <i.maximets@samsung.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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