[Qemu-block] [PATCH 1/1] virtio-blk: fix comment for virtio_blk_rw_complete as nalloc is initially -1

[Dongli Zhang]

The initial value of nalloc is -1, but not 1.

Signed-off-by: Dongli Zhang <address@hidden>
---
This is based on git://git.kernel.org/pub/scm/virt/kvm/mst/qemu.git 
tags/for_upstream

 hw/block/virtio-blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index 83cf5c0..30999c3 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -96,7 +96,7 @@ static void virtio_blk_rw_complete(void *opaque, int ret)
         trace_virtio_blk_rw_complete(vdev, req, ret);
 
         if (req->qiov.nalloc != -1) {
-            /* If nalloc is != 1 req->qiov is a local copy of the original
+            /* If nalloc is != -1 req->qiov is a local copy of the original
              * external iovec. It was allocated in submit_requests to be
              * able to merge requests. */
             qemu_iovec_destroy(&req->qiov);
-- 
2.7.4