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scsi: hisi_sas: grab hisi_hba.lock when processing slots

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When adding/removing slots from device list, we need to lock this
operation with hisi_hba lock for safety.

This patch adds missing instances of this.

Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Xiang Chen 2017-10-24 23:51:34 +08:00 committed by Martin K. Petersen
parent 302e09016b
commit 9feaf9090b
3 changed files with 8 additions and 1 deletions
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5
drivers/scsi/hisi_sas/hisi_sas_main.c
View File

@ -401,7 +401,9 @@ static int hisi_sas_task_prep(struct sas_task *task, struct hisi_sas_dq
goto err_out_buf;
}
spin_lock_irqsave(&hisi_hba->lock, flags);
list_add_tail(&slot->entry, &sas_dev->list);
spin_unlock_irqrestore(&hisi_hba->lock, flags);
spin_lock_irqsave(&task->task_state_lock, flags);
task->task_state_flags |= SAS_TASK_AT_INITIATOR;
spin_unlock_irqrestore(&task->task_state_lock, flags);
@ -1387,8 +1389,9 @@ hisi_sas_internal_abort_task_exec(struct hisi_hba *hisi_hba, int device_id,
if (rc)
goto err_out_buf;
spin_lock_irqsave(&hisi_hba->lock, flags);
list_add_tail(&slot->entry, &sas_dev->list);
spin_unlock_irqrestore(&hisi_hba->lock, flags);
spin_lock_irqsave(&task->task_state_lock, flags);
task->task_state_flags |= SAS_TASK_AT_INITIATOR;
spin_unlock_irqrestore(&task->task_state_lock, flags);

2
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
View File

@ -2378,7 +2378,9 @@ slot_complete_v2_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
if (unlikely(aborted)) {
ts->stat = SAS_ABORTED_TASK;
spin_lock_irqsave(&hisi_hba->lock, flags);
hisi_sas_slot_task_free(hisi_hba, task, slot);
spin_unlock_irqrestore(&hisi_hba->lock, flags);
return -1;
}

2
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
View File

@ -1400,7 +1400,9 @@ slot_complete_v3_hw(struct hisi_hba *hisi_hba, struct hisi_sas_slot *slot)
ts->resp = SAS_TASK_COMPLETE;
if (unlikely(aborted)) {
ts->stat = SAS_ABORTED_TASK;
spin_lock_irqsave(&hisi_hba->lock, flags);
hisi_sas_slot_task_free(hisi_hba, task, slot);
spin_unlock_irqrestore(&hisi_hba->lock, flags);
return -1;
}