While accessing a UFS device, the module reference count for core driver
(ufshcd) is incremented but not incremented for the actual glue driver
(ufshcd-pci or ufshcd-pltfrm).  Because these drivers allocate scsi hosts
with scsi_host_template defined in ufshcd module.  So these drivers always
can be unloaded.

This fixes it by adjusting module reference after scsi host allocation.

Signed-off-by: Akinobu Mita <akinobu.m...@gmail.com>
Cc: Vinayak Holikatti <vinholika...@gmail.com>
Cc: Dolev Raviv <dra...@codeaurora.org>
Cc: Sujit Reddy Thumma <sthu...@codeaurora.org>
Cc: Subhash Jadavani <subha...@codeaurora.org>
Cc: Christoph Hellwig <h...@lst.de>
Cc: "James E.J. Bottomley" <jbottom...@parallels.com>
Cc: linux-scsi@vger.kernel.org
---
 drivers/scsi/ufs/ufshcd-pci.c    | 1 +
 drivers/scsi/ufs/ufshcd-pltfrm.c | 1 +
 drivers/scsi/ufs/ufshcd.c        | 1 -
 3 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index d15eaa4..9fe21b4 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -142,6 +142,7 @@ ufshcd_pci_probe(struct pci_dev *pdev, const struct 
pci_device_id *id)
                return err;
        }
 
+       hba->host->module = THIS_MODULE;
        INIT_LIST_HEAD(&hba->clk_list_head);
 
        err = ufshcd_init(hba, mmio_base, pdev->irq);
diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index 95b64e0..ea3ca99 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -322,6 +322,7 @@ static int ufshcd_pltfrm_probe(struct platform_device *pdev)
                goto out;
        }
 
+       hba->host->module = THIS_MODULE;
        hba->vops = get_variant_ops(&pdev->dev);
 
        err = ufshcd_parse_clock_info(hba);
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 2e26025..f0aff90 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4202,7 +4202,6 @@ static void ufshcd_async_scan(void *data, async_cookie_t 
cookie)
 }
 
 static struct scsi_host_template ufshcd_driver_template = {
-       .module                 = THIS_MODULE,
        .name                   = UFSHCD,
        .proc_name              = UFSHCD,
        .queuecommand           = ufshcd_queuecommand,
-- 
1.9.1

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