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/isci/task.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/isci/task.c')
| -rw-r--r-- | drivers/scsi/isci/task.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 14738702d4c9..c82d07978532 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -91,8 +91,7 @@ static void isci_task_refuse(struct isci_host *ihost, struct sas_task *task, /* Normal notification (task_done) */ task->task_state_flags |= SAS_TASK_STATE_DONE; - task->task_state_flags &= ~(SAS_TASK_AT_INITIATOR | - SAS_TASK_STATE_PENDING); + task->task_state_flags &= ~SAS_TASK_STATE_PENDING; task->lldd_task = NULL; spin_unlock_irqrestore(&task->task_state_lock, flags); @@ -164,7 +163,6 @@ int isci_task_execute_task(struct sas_task *task, gfp_t gfp_flags) } else { struct isci_request *ireq; - task->task_state_flags |= SAS_TASK_AT_INITIATOR; /* do common allocation and init of request object. */ ireq = isci_io_request_from_tag(ihost, task, tag); spin_unlock_irqrestore(&task->task_state_lock, flags); @@ -531,8 +529,7 @@ int isci_task_abort_task(struct sas_task *task) */ spin_lock_irqsave(&task->task_state_lock, flags); task->task_state_flags |= SAS_TASK_STATE_DONE; - task->task_state_flags &= ~(SAS_TASK_AT_INITIATOR | - SAS_TASK_STATE_PENDING); + task->task_state_flags &= ~SAS_TASK_STATE_PENDING; spin_unlock_irqrestore(&task->task_state_lock, flags); ret = TMF_RESP_FUNC_COMPLETE; @@ -580,8 +577,7 @@ int isci_task_abort_task(struct sas_task *task) test_bit(IDEV_GONE, &idev->flags)); spin_lock_irqsave(&task->task_state_lock, flags); - task->task_state_flags &= ~(SAS_TASK_AT_INITIATOR | - SAS_TASK_STATE_PENDING); + task->task_state_flags &= ~SAS_TASK_STATE_PENDING; task->task_state_flags |= SAS_TASK_STATE_DONE; spin_unlock_irqrestore(&task->task_state_lock, flags); |