diff options
| author | John Garry <john.garry@huawei.com> | 2022-02-10 13:43:24 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-02-12 01:02:50 +0300 |
| commit | 26fc0ea74fcb9b76b41f5e9b89728cd1c01559cd (patch) | |
| tree | be8fb5e6ebc63597c147c35729e90a1c0ba4b1a2 /drivers/scsi/pm8001/pm8001_sas.c | |
| parent | c39d5aa457f2472c710e9e4cadb207338c0d34af (diff) | |
| download | linux-26fc0ea74fcb9b76b41f5e9b89728cd1c01559cd.tar.xz | |
scsi: libsas: Drop SAS_TASK_AT_INITIATOR
This flag is now only ever set, so delete it.
This also avoids a use-after-free in the pm8001 queue path, as reported in
the following:
https://lore.kernel.org/linux-scsi/c3cb7228-254e-9584-182b-007ac5e6fe0a@huawei.com/T/#m28c94c6d3ff582ec4a9fa54819180740e8bd4cfb
https://lore.kernel.org/linux-scsi/0cc0c435-b4f2-9c76-258d-865ba50a29dd@huawei.com/
[mkp: checkpatch + two SAS_TASK_AT_INITIATOR references]
Link: https://lore.kernel.org/r/1644489804-85730-3-git-send-email-john.garry@huawei.com
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/pm8001/pm8001_sas.c')
| -rw-r--r-- | drivers/scsi/pm8001/pm8001_sas.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c index 160ee8b228c9..b3530f53df25 100644 --- a/drivers/scsi/pm8001/pm8001_sas.c +++ b/drivers/scsi/pm8001/pm8001_sas.c @@ -487,9 +487,6 @@ static int pm8001_task_exec(struct sas_task *task, goto err_out_tag; } /* TODO: select normal or high priority */ - spin_lock(&t->task_state_lock); - t->task_state_flags |= SAS_TASK_AT_INITIATOR; - spin_unlock(&t->task_state_lock); } while (0); rc = 0; goto out_done; @@ -978,7 +975,6 @@ void pm8001_open_reject_retry( atomic_dec(&pm8001_dev->running_req); spin_lock_irqsave(&task->task_state_lock, flags1); task->task_state_flags &= ~SAS_TASK_STATE_PENDING; - task->task_state_flags &= ~SAS_TASK_AT_INITIATOR; task->task_state_flags |= SAS_TASK_STATE_DONE; if (unlikely((task->task_state_flags & SAS_TASK_STATE_ABORTED))) { |