From 589575a23562b588c82bdb57ed8c09bee5f0f174 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Tue, 16 Oct 2012 23:56:15 +1030
Subject: [PATCH] virtio: console: make it clear that virtqueue_add_buf() no
 longer returns > 0

We simplified virtqueue_add_buf(), make it clear in the callers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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