From: Bart Van Assche <bvanassche@acm.org>
Date: Fri, 9 Aug 2019 03:01:38 +0000 (-0700)
Subject: scsi: qla2xxx: Remove two superfluous tests
X-Git-Tag: v5.4-rc2~5^2~184
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8b21900b09a55ccee1aaddaabee729484f641997;p=platform%2Fkernel%2Flinux-rpi.git

scsi: qla2xxx: Remove two superfluous tests

Since qlt_remove_target() only calls qlt_release() if
vha->vha_tgt.qla_tgt != NULL, checking that pointer inside qlt_release()
is not necessary. This patch fixes the following Coverity complaint:

CID 188348 (#1 of 1): Dereference after null check (FORWARD_NULL)
var_deref_model: Passing null pointer &vha->vha_tgt.qla_tgt->tgt_list_entry
to list_del, which dereferences it.

Cc: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Tested-by: Himanshu Madhani <hmadhani@marvell.com>
Reviewed-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---

diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 221912d..12a3e77 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1580,11 +1580,10 @@ static void qlt_release(struct qla_tgt *tgt)
 	struct qla_qpair_hint *h;
 	struct qla_hw_data *ha = vha->hw;
 
-	if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stop &&
-	    !tgt->tgt_stopped)
+	if (!tgt->tgt_stop && !tgt->tgt_stopped)
 		qlt_stop_phase1(tgt);
 
-	if ((vha->vha_tgt.qla_tgt != NULL) && !tgt->tgt_stopped)
+	if (!tgt->tgt_stopped)
 		qlt_stop_phase2(tgt);
 
 	for (i = 0; i < vha->hw->max_qpairs + 1; i++) {