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Subject[PATCH V3 2/2] scsi: qla2xxx: Optimisation of exception handling in qla24xx_els_dcmd_iocb
Date
To avoid duplicate error handling code a bit more, use more common goto
chain in qla24xx_els_dcmd_iocb.

Signed-off-by: Yongzhi Liu <hyperlyzcs@gmail.com>
---
V2 -> V3: Improve patch summary and provide a patch serises with two separate update steps
V1 -> V2: Optimisation of exception handling

drivers/scsi/qla2xxx/qla_iocb.c | 12 +++++-------
1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index faec66bd1951..a3a3904cbb47 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -2749,9 +2749,8 @@ qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode,
GFP_KERNEL);

if (!elsio->u.els_logo.els_logo_pyld) {
- /* ref: INIT */
- kref_put(&sp->cmd_kref, qla2x00_sp_release);
- return QLA_FUNCTION_FAILED;
+ rval = QLA_FUNCTION_FAILED;
+ goto put_ref;
}

memset(&logo_pyld, 0, sizeof(struct els_logo_payload));
@@ -2773,9 +2772,8 @@ qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode,

rval = qla2x00_start_sp(sp);
if (rval != QLA_SUCCESS) {
- /* ref: INIT */
- kref_put(&sp->cmd_kref, qla2x00_sp_release);
- return QLA_FUNCTION_FAILED;
+ rval = QLA_FUNCTION_FAILED;
+ goto put_ref;
}

ql_dbg(ql_dbg_io, vha, 0x3074,
@@ -2784,7 +2782,7 @@ qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode,
fcport->d_id.b.area, fcport->d_id.b.al_pa);

wait_for_completion(&elsio->u.els_logo.comp);
-
+put_ref:
/* ref: INIT */
kref_put(&sp->cmd_kref, qla2x00_sp_release);
return rval;
--
2.36.1

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