From: Yihang Li <liyihang9@xxxxxxxxxx>
In commit 4b329abc91800 ("scsi: hisi_sas: Move slot variable definition in
hisi_sas_abort_task()"), we move the variables slot to the function head.
However, the variable slot may be NULL, we should check it in each branch.
Fixes: 4b329abc9180 ("scsi: hisi_sas: Move slot variable definition in hisi_sas_abort_task()")
Signed-off-by: Yihang Li <liyihang9@xxxxxxxxxx>
Signed-off-by: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 1601706..bbb7b2d 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1641,7 +1641,10 @@ static int hisi_sas_abort_task(struct sas_task *task)
task->task_state_flags |= SAS_TASK_STATE_ABORTED;
spin_unlock_irqrestore(&task->task_state_lock, flags);
- if (slot && task->task_proto & SAS_PROTOCOL_SSP) {
+ if (!slot)
+ goto out;
+
+ if (task->task_proto & SAS_PROTOCOL_SSP) {
u16 tag = slot->idx;
int rc2;
@@ -1688,7 +1691,7 @@ static int hisi_sas_abort_task(struct sas_task *task)
rc = hisi_sas_softreset_ata_disk(device);
}
}
- } else if (slot && task->task_proto & SAS_PROTOCOL_SMP) {
+ } else if (task->task_proto & SAS_PROTOCOL_SMP) {
/* SMP */
u32 tag = slot->idx;
struct hisi_sas_cq *cq = &hisi_hba->cq[slot->dlvry_queue];
--
2.8.1
