libqos: add qvirtqueue_cleanup()

qvirtqueue_setup() allocates the vring and virtqueue state.  So far
there has been no function to free it.  Callers have been using
guest_free() for the vring but forgot to free the QVirtQueue state.

This patch solves the memory leak by introducing qvirtqueue_cleanup().

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/tests/libqos/virtio.c b/tests/libqos/virtio.c
index f79d2d1..d8c2970 100644
--- a/tests/libqos/virtio.c
+++ b/tests/libqos/virtio.c
@@ -54,6 +54,12 @@ QVirtQueue *qvirtqueue_setup(const QVirtioBus *bus, QVirtioDevice *d,
     return bus->virtqueue_setup(d, alloc, index);
 }
 
+void qvirtqueue_cleanup(const QVirtioBus *bus, QVirtQueue *vq,
+                        QGuestAllocator *alloc)
+{
+    return bus->virtqueue_cleanup(vq, alloc);
+}
+
 void qvirtio_reset(const QVirtioBus *bus, QVirtioDevice *d)
 {
     bus->set_status(d, 0);