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

From: Paolo Bonzini
Date: Mon Oct 01 2012 - 09:21:09 EST


Il 01/10/2012 15:18, Richard W.M. Jones ha scritto:
> 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>
>>
>> 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).

Indeed I enclosed it in a submission named "[PATCH for 3.6] urgent
virtio-scsi fixes"
(http://permalink.gmane.org/gmane.linux.kernel/1350337)...

Paolo
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