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scsi: qla2xxx: Fix memory corruption during hba reset test

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[ Upstream commit 2ce87cc5b2 ]

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>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Quinn Tran
2018-01-23 11:05:21 -08:00
committed by Greg Kroah-Hartman
parent 59ad4bb717
commit b0ef004e86
1 changed files with 2 additions and 0 deletions
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2
drivers/scsi/qla2xxx/qla_os.c
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@@ -3581,6 +3581,8 @@ 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.