From: Richard W.M. Jones <rjo...@redhat.com>

The sg struct for events is used without being initialized.  This
triggers a BUG_ON if CONFIG_DEBUG_SG is defined.

This was reported at https://bugzilla.redhat.com/show_bug.cgi?id=847548.

Signed-off-by: Richard W.M. Jones <rjo...@redhat.com>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
 drivers/scsi/virtio_scsi.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 3e79a2f..7554d78 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);
 
-- 
1.7.1


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