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scsi: hisi_sas: lock sensitive region in hisi_sas_slot_abort() 

When we call hisi_sas_slot_task_free() we should grab the hisi_hba.lock,
as hisi_sas_slot_task_free() accesses common hisi_hba elements.
Function hisi_sas_slot_abort() is missing this, so add it.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Tested-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
John Garry 2017-01-03 20:24:50 +08:00 committed by Martin K. Petersen
parent 64d6318732
commit da7b66e720
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/hisi_sas/hisi_sas_main.c
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@ -146,6 +146,7 @@ static void hisi_sas_slot_abort(struct work_struct *work)
struct scsi_lun lun;
struct device *dev = &hisi_hba->pdev->dev;
int tag = abort_slot->idx;
unsigned long flags;
if (!(task->task_proto & SAS_PROTOCOL_SSP)) {
dev_err(dev, "cannot abort slot for non-ssp task\n");
@ -159,7 +160,9 @@ static void hisi_sas_slot_abort(struct work_struct *work)
hisi_sas_debug_issue_ssp_tmf(task->dev, lun.scsi_lun, &tmf_task);
out:
/* Do cleanup for this task */
spin_lock_irqsave(&hisi_hba->lock, flags);
hisi_sas_slot_task_free(hisi_hba, task, abort_slot);
spin_unlock_irqrestore(&hisi_hba->lock, flags);
if (task->task_done)
task->task_done(task);
if (sas_dev)