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Date: Tue, 3 Jun 2014 21:33:15 +0200 From: Paolo Bonzini <pbonzini@...hat.com> To: linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org Cc: hch@....de, JBottomley@...allels.com, venkateshs@...gle.com, stable@...r.kernel.org Subject: [PATCH 3/6] virtio-scsi: avoid cancelling uninitialized work items 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, and a debug kernel rightfully complains. Cc: stable@...r.kernel.org Signed-off-by: Paolo Bonzini <pbonzini@...hat.com> --- drivers/scsi/virtio_scsi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index f0b4cdbfceb0..d66c4ee2c774 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -253,6 +253,8 @@ static void virtscsi_ctrl_done(struct virtqueue *vq) 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) { @@ -260,6 +262,7 @@ static int virtscsi_kick_event(struct virtio_scsi *vscsi, 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); @@ -377,7 +380,6 @@ static void virtscsi_complete_event(struct virtio_scsi *vscsi, void *buf) { struct virtio_scsi_event_node *event_node = buf; - INIT_WORK(&event_node->work, virtscsi_handle_event); schedule_work(&event_node->work); } -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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