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libqos: add qvirtqueue_cleanup()

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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>
This commit is contained in:
Stefan Hajnoczi 2016-05-05 16:53:35 +01:00
parent c75f4c061b
commit f1d3b99154
7 changed files with 36 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

8
tests/libqos/virtio-mmio.c
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@ -154,6 +154,13 @@ static QVirtQueue *qvirtio_mmio_virtqueue_setup(QVirtioDevice *d,
return vq;
}
static void qvirtio_mmio_virtqueue_cleanup(QVirtQueue *vq,
QGuestAllocator *alloc)
{
guest_free(alloc, vq->desc);
g_free(vq);
}
static void qvirtio_mmio_virtqueue_kick(QVirtioDevice *d, QVirtQueue *vq)
{
QVirtioMMIODevice *dev = (QVirtioMMIODevice *)d;
@ -176,6 +183,7 @@ const QVirtioBus qvirtio_mmio = {
.get_queue_size = qvirtio_mmio_get_queue_size,
.set_queue_address = qvirtio_mmio_set_queue_address,
.virtqueue_setup = qvirtio_mmio_virtqueue_setup,
.virtqueue_cleanup = qvirtio_mmio_virtqueue_cleanup,
.virtqueue_kick = qvirtio_mmio_virtqueue_kick,
};