Patch "virtio-scsi: avoid cancelling uninitialized work items" has been added to the 3.10-stable tree

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This is a note to let you know that I've just added the patch titled

    virtio-scsi: avoid cancelling uninitialized work items

to the 3.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     virtio-scsi-avoid-cancelling-uninitialized-work-items.patch
and it can be found in the queue-3.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From cdda0e5acbb78f7b777049f8c27899e5c5bb368f Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Date: Wed, 4 Jun 2014 13:34:56 +0200
Subject: virtio-scsi: avoid cancelling uninitialized work items

From: Paolo Bonzini <pbonzini@xxxxxxxxxx>

commit cdda0e5acbb78f7b777049f8c27899e5c5bb368f upstream.

Calling the workqueue interface on uninitialized work items isn't a
good idea even if they're zeroed. It's not failing catastrophically only
through happy accidents.

Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
Reviewed-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/scsi/virtio_scsi.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -288,6 +288,8 @@ static void virtscsi_ctrl_done(struct vi
 	virtscsi_vq_done(vscsi, &vscsi->ctrl_vq, virtscsi_complete_free);
 };
 
+static void virtscsi_handle_event(struct work_struct *work);
+
 static int virtscsi_kick_event(struct virtio_scsi *vscsi,
 			       struct virtio_scsi_event_node *event_node)
 {
@@ -295,6 +297,7 @@ static int virtscsi_kick_event(struct vi
 	struct scatterlist sg;
 	unsigned long flags;
 
+	INIT_WORK(&event_node->work, virtscsi_handle_event);
 	sg_init_one(&sg, &event_node->event, sizeof(struct virtio_scsi_event));
 
 	spin_lock_irqsave(&vscsi->event_vq.vq_lock, flags);
@@ -412,7 +415,6 @@ static void virtscsi_complete_event(stru
 {
 	struct virtio_scsi_event_node *event_node = buf;
 
-	INIT_WORK(&event_node->work, virtscsi_handle_event);
 	schedule_work(&event_node->work);
 }
 


Patches currently in stable-queue which might be from pbonzini@xxxxxxxxxx are

queue-3.10/virtio-scsi-fix-various-bad-behavior-on-aborted-requests.patch
queue-3.10/virtio-scsi-avoid-cancelling-uninitialized-work-items.patch
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