On Fri, 2012-07-20 at 10:07 +0300, Dan Carpenter wrote:
> We called destroy_workqueue(dev->tmr_wq) before ->tmr_wq was allocated
> which leads to an oops.
>
> Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
>
Looks good. Applied to for-next w/ a comment pointing to:
commit af8772926f019b7bddd7477b8de5f3b0f12bad21
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sun Jul 8 15:58:49 2012 -0400
target: replace the processing thread with a TMR work queue
Thanks DanC!
> diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
> index 7647eca..0eaae23 100644
> --- a/drivers/target/target_core_transport.c
> +++ b/drivers/target/target_core_transport.c
> @@ -1098,7 +1098,7 @@ struct se_device *transport_add_device_to_core_hba(
> * Setup the Asymmetric Logical Unit Assignment for struct se_device
> */
> if (core_setup_alua(dev, force_pt) < 0)
> - goto out;
> + goto err_dev_list;
>
> /*
> * Startup the struct se_device processing thread
> @@ -1108,7 +1108,7 @@ struct se_device *transport_add_device_to_core_hba(
> if (!dev->tmr_wq) {
> pr_err("Unable to create tmr workqueue for %s\n",
> dev->transport->name);
> - goto out;
> + goto err_dev_list;
> }
> /*
> * Setup work_queue for QUEUE_FULL
> @@ -1126,7 +1126,7 @@ struct se_device *transport_add_device_to_core_hba(
> if (!inquiry_prod || !inquiry_rev) {
> pr_err("All non TCM/pSCSI plugins require"
> " INQUIRY consts\n");
> - goto out;
> + goto err_wq;
> }
>
> strncpy(&dev->se_sub_dev->t10_wwn.vendor[0], "LIO-ORG", 8);
> @@ -1136,9 +1136,10 @@ struct se_device *transport_add_device_to_core_hba(
> scsi_dump_inquiry(dev);
>
> return dev;
> -out:
> - destroy_workqueue(dev->tmr_wq);
>
> +err_wq:
> + destroy_workqueue(dev->tmr_wq);
> +err_dev_list:
> spin_lock(&hba->device_lock);
> list_del(&dev->dev_list);
> hba->dev_count--;
> --
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