On Mon, Aug 13, 2012 at 08:35:17AM +0000, Nicholas A. Bellinger wrote:
> From: Nicholas Bellinger <n...@linux-iscsi.org>
> 
> This patch fixes bug in the definition of VirtIOSCSI->cmd_vqs[0],
> where the return of virtio_add_queue() in virtio_scsi_init() ends up
> overwriting past the end of ->cmd_vqs[0].
> 
> Since virtio_scsi currently assumes a single vqs for data, this patch
> simply changes ->cmd_vqs[1] to handle the single VirtQueue.
> 
> Cc: Paolo Bonzini <pbonz...@redhat.com>
> Cc: Stefan Hajnoczi <stefa...@linux.vnet.ibm.com>
> Cc: Michael S. Tsirkin <m...@redhat.com>
> Signed-off-by: Nicholas Bellinger <n...@linux-iscsi.org>

This is a bugfix we need even without vhost, right?

> ---
>  hw/virtio-scsi.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/hw/virtio-scsi.c b/hw/virtio-scsi.c
> index 5e2ff6b..2c70f89 100644
> --- a/hw/virtio-scsi.c
> +++ b/hw/virtio-scsi.c
> @@ -150,7 +150,7 @@ typedef struct {
>      bool events_dropped;
>      VirtQueue *ctrl_vq;
>      VirtQueue *event_vq;
> -    VirtQueue *cmd_vqs[0];
> +    VirtQueue *cmd_vqs[1];
>  
>      bool vhost_started;
>      VHostSCSI *vhost_scsi;
> -- 
> 1.7.2.5
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