From: Bart Van Assche <bvanassche@xxxxxxx>
[ Upstream commit c04466c17142d5eb566984372b9a5003d1900fe3 ]
The test "if (!cmd)" is not useful because it is guaranteed that cmd !=
NULL. Instead of testing the cmd pointer, rely on the tag to decide
whether or not command allocation failed.
Cc: Himanshu Madhani <hmadhani@xxxxxxxxxxx>
Cc: Giridhar Malavali <gmalavali@xxxxxxxxxxx>
Fixes: 33e799775593 ("qla2xxx: Add support for QFull throttling and Term Exchange retry") # v3.18.
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
Acked-by: Himanshu Madhani <hmadhani@xxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_target.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index bbbe1996620bf..c925ca7875374 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -5334,11 +5334,7 @@ qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
se_sess = sess->se_sess;
tag = sbitmap_queue_get(&se_sess->sess_tag_pool, &cpu);
- if (tag < 0)
- return;
-
- cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag];
- if (!cmd) {
+ if (tag < 0) {
ql_dbg(ql_dbg_io, vha, 0x3009,
"qla_target(%d): %s: Allocation of cmd failed\n",
vha->vp_idx, __func__);
@@ -5353,6 +5349,7 @@ qlt_alloc_qfull_cmd(struct scsi_qla_host *vha,
return;
}
+ cmd = &((struct qla_tgt_cmd *)se_sess->sess_cmd_map)[tag];
memset(cmd, 0, sizeof(struct qla_tgt_cmd));
qlt_incr_num_pend_cmds(vha);
--
2.20.1
