linux-kernel - Re: [PATCH v2] scsi: lpfc: fix ioremap issues in 'lpfc_sli4_pci_mem

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Message-ID: <yq1leixoqt0.fsf@ca-mkp.ca.oracle.com>
Date:   Tue, 11 Apr 2023 21:03:19 -0400
From:   "Martin K. Petersen" <martin.petersen@...cle.com>
To:     lishuchang@...t.edu.cn
Cc:     James Smart <james.smart@...adcom.com>,
        Dick Kennedy <dick.kennedy@...adcom.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        hust-os-kernel-patches@...glegroups.com,
        James Smart <jsmart2021@...il.com>, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] scsi: lpfc: fix ioremap issues in
 'lpfc_sli4_pci_mem_setup'


> When if_type equals to zero and pci_resource_start(pdev,
> PCI_64BIT_BAR4) returns false, drbl_regs_memmap_p is not remapped.This
> passes a NULL pointer to iounmap(), which can trigger a WARN() on
> certain arches.

Applied to 6.4/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering