From: Quinn Tran <quinn.tran@cavium.com>
Date: Tue, 23 Jan 2018 11:05:21 -0800
Subject: [PATCH] scsi: qla2xxx: Fix memory corruption during hba reset test
Git-commit: 2ce87cc5b269510de9ca1185ca8a6e10ec78c069
Patch-mainline: v4.16-rc3
References: bsc#1118139
This patch fixes memory corrpution while performing HBA Reset test.
Following stack trace is seen:
[ 466.397219] BUG: unable to handle kernel NULL pointer dereference at 0000000000000020
[ 466.433669] IP: [<ffffffffc06f5dd0>] qlt_free_session_done+0x260/0x5f0 [qla2xxx]
[ 466.467731] PGD 0
[ 466.476718] Oops: 0000 [#1] SMP
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Hannes Reinecke <hare@suse.com>
---
drivers/scsi/qla2xxx/qla_os.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 12ee6e02d146..afcb5567998a 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -3625,6 +3625,8 @@ qla2x00_remove_one(struct pci_dev *pdev)
}
qla2x00_wait_for_hba_ready(base_vha);
+ qla2x00_wait_for_sess_deletion(base_vha);
+
/*
* if UNLOAD flag is already set, then continue unload,
* where it was set first.
--
2.12.3