Re: [PATCH] [SCSI] virtio-scsi: Initialize scatterlist structure.

From: Richard W.M. Jones
Date: Mon Oct 01 2012 - 09:19:05 EST


On Mon, Oct 01, 2012 at 03:13:01PM +0200, Paolo Bonzini wrote:
> Il 20/08/2012 16:05, Paolo Bonzini ha scritto:
> > Il 20/08/2012 16:04, Richard W.M. Jones ha scritto:
> >> From: "Richard W.M. Jones" <rjones@xxxxxxxxxx>
> >>
> >> The sg struct is used without being initialized.
> >>
> >> https://bugzilla.redhat.com/show_bug.cgi?id=847548
> >>
> >> Signed-off-by: Richard W.M. Jones <rjones@xxxxxxxxxx>
> >> ---
> >> drivers/scsi/virtio_scsi.c | 2 +-
> >> 1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
> >> index c7030fb..8a66f83 100644
> >> --- a/drivers/scsi/virtio_scsi.c
> >> +++ b/drivers/scsi/virtio_scsi.c
> >> @@ -219,7 +219,7 @@ static int virtscsi_kick_event(struct virtio_scsi *vscsi,
> >> struct scatterlist sg;
> >> unsigned long flags;
> >>
> >> - sg_set_buf(&sg, &event_node->event, sizeof(struct virtio_scsi_event));
> >> + sg_init_one(&sg, &event_node->event, sizeof(struct virtio_scsi_event));
> >>
> >> spin_lock_irqsave(&vscsi->event_vq.vq_lock, flags);
> >>
> >>
> >
> > Acked-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
> >
> > Paolo
> >
>
> Ping, is this patch going into 3.7?

I was a bit surprised to see this wasn't upstream since it's vital for
using virtio-scsi reliably (as well as being a one line fix for a
blatant bug).

Rich.

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