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Subject[PATCH for 3.6 2/3] virtio-scsi: initialize scatterlist structure for events
Date
From: Richard W.M. Jones <rjones@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 <rjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@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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