tools/virtio: fix virtio_test execution

[ Upstream commit 32f1b53fe8f03d962423ba81f8e92af5839814da ]

virtio_test hangs on __vring_new_virtqueue() because `vqs_list_lock`
is not initialized.

Let's initialize it in vdev_info_init().

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20220118150631.167015-1-sgarzare@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
index cb3f29c..23f142a 100644 (file)
--- a/tools/virtio/virtio_test.c
+++ b/tools/virtio/virtio_test.c
@@ -130,6 +130,7 @@ static void vdev_info_init(struct vdev_info* dev, unsigned long long features)
        memset(dev, 0, sizeof *dev);
        dev->vdev.features = features;
        INIT_LIST_HEAD(&dev->vdev.vqs);
+       spin_lock_init(&dev->vdev.vqs_list_lock);
        dev->buf_size = 1024;
        dev->buf = malloc(dev->buf_size);
        assert(dev->buf);