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Subject: Re: [PATCH 2/5] scsi: libsas: check the lldd callback correctly
To:     Jason Yan <yanaijie@huawei.com>, <martin.petersen@oracle.com>,
        <jejb@linux.vnet.ibm.com>
References: <20180912082946.34814-1-yanaijie@huawei.com>
 <20180912082946.34814-3-yanaijie@huawei.com>
CC:     <linux-scsi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <zhaohongjiang@huawei.com>, <hare@suse.com>,
        <dan.j.williams@intel.com>, <jthumshirn@suse.de>, <hch@lst.de>,
        <huangdaode@hisilicon.com>, <chenxiang66@hisilicon.com>,
        <miaoxie@huawei.com>, Ewan Milne <emilne@redhat.com>,
        Tomas Henzl <thenzl@redhat.com>, Linuxarm <linuxarm@huawei.com>
From:   John Garry <john.garry@huawei.com>
Message-ID: <ac858677-0606-665a-44fb-4042e81e83aa@huawei.com>
Date:   Mon, 17 Sep 2018 09:11:49 +0100
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On 12/09/2018 09:29, Jason Yan wrote:
> We are using lldd_port_deformed so we'd better check if lldd_port_deformed
> is NULL.
>
> After this, we can remove hisi_sas_port_deformed() because it is just a
> stub to avoid a NULL dereference caused by the wrong check.
>
> Signed-off-by: Jason Yan <yanaijie@huawei.com>

Acked-by: John Garry <john.garry@huawei.com>

> CC: John Garry <john.garry@huawei.com>
> CC: Johannes Thumshirn <jthumshirn@suse.de>
> CC: Ewan Milne <emilne@redhat.com>
> CC: Christoph Hellwig <hch@lst.de>
> CC: Tomas Henzl <thenzl@redhat.com>
> CC: Dan Williams <dan.j.williams@intel.com>
> CC: Hannes Reinecke <hare@suse.com>
> ---