virtio-input: reset device and detach unused during remove
Spec requires a device reset during cleanup, so do it and avoid warn
in virtio core. And detach unused buffers to avoid memory leak.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
diff --git a/drivers/virtio/virtio_input.c b/drivers/virtio/virtio_input.c
index 60e2a16..c96944b 100644
--- a/drivers/virtio/virtio_input.c
+++ b/drivers/virtio/virtio_input.c
@@ -313,6 +313,7 @@
static void virtinput_remove(struct virtio_device *vdev)
{
struct virtio_input *vi = vdev->priv;
+ void *buf;
unsigned long flags;
spin_lock_irqsave(&vi->lock, flags);
@@ -320,6 +321,9 @@
spin_unlock_irqrestore(&vi->lock, flags);
input_unregister_device(vi->idev);
+ vdev->config->reset(vdev);
+ while ((buf = virtqueue_detach_unused_buf(vi->sts)) != NULL)
+ kfree(buf);
vdev->config->del_vqs(vdev);
kfree(vi);
}