[PATCH v2 7/8] hisi_sas: add TMF success check

[John Garry]

When a tmf is issued, various response codes can be
returned from the target. For a query tmf the
response may be TMF_RESP_FUNC_COMPLETE or
TMF_RESP_FUNC_SUCC.
Add a condition for TMF_RESP_FUNC_SUCC to
hisi_sas_exec_internal_tmf_task().
This affects query tmf, as the result is success
the returned value was for failure.

Signed-off-by: John Garry <john.ga...@huawei.com>
---
 drivers/scsi/hisi_sas/hisi_sas_main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c 
b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 73f581f..85c73d3 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -744,6 +744,12 @@ static int hisi_sas_exec_internal_tmf_task(struct 
domain_device *device,
                }
 
                if (task->task_status.resp == SAS_TASK_COMPLETE &&
+                       task->task_status.stat == TMF_RESP_FUNC_SUCC) {
+                       res = TMF_RESP_FUNC_SUCC;
+                       break;
+               }
+
+               if (task->task_status.resp == SAS_TASK_COMPLETE &&
                      task->task_status.stat == SAS_DATA_UNDERRUN) {
                        /* no error, but return the number of bytes of
                         * underrun
-- 
1.9.1