diff mbox series

[18/34] qla2xxx: Fix error handling in qlt_alloc_qfull_cmd()

Message ID 20190417214443.243152-19-bvanassche@acm.org (mailing list archive)
State Mainlined
Commit c04466c17142d5eb566984372b9a5003d1900fe3
Headers show
Series qla2xxx source code cleanup and bug fixes | expand

Commit Message

Bart Van Assche April 17, 2019, 9:44 p.m. UTC 
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@marvell.com>
Cc: Giridhar Malavali <gmalavali@marvell.com>
Fixes: 33e799775593 ("qla2xxx: Add support for QFull throttling and Term Exchange retry") # v3.18.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/qla2xxx/qla_target.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 69fc29d7e59d..144bdec9ddd2 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -5481,11 +5481,7 @@  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__);
@@ -5500,6 +5496,7 @@  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);