[PATCH net] vsock/virtio: Fix error code in virtio_transport_recv_listen()

[Dan Carpenter]

Return a negative error code if the transport doesn't match.  Don't
return success.

Fixes: c0cfa2d8a788 ("vsock: add multi-transports support")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
>From static analysis.  Not tested.

 net/vmw_vsock/virtio_transport_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index dcc8a1d5851e..77fbc6c541bf 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -1550,7 +1550,7 @@ virtio_transport_recv_listen(struct sock *sk, struct sk_buff *skb,
 		release_sock(child);
 		virtio_transport_reset_no_sock(t, skb);
 		sock_put(child);
-		return ret;
+		return ret ?: -EINVAL;
 	}
 
 	if (virtio_transport_space_update(child, skb))
-- 
2.51.0