This patch uses the resource-managed to add the devfreq device.
This function will make it easy to handle the devfreq device.

- struct devfreq *devm_devfreq_add_device(struct device *dev,
                                  struct devfreq_dev_profile *profile,
                                  const char *governor_name,
                                  void *data);
Cc: Vinayak Holikatti <vinholika...@gmail.com>
Cc: James E.J. Bottomley <j...@linux.vnet.ibm.com>
Cc: Martin K. Petersen <martin.peter...@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Chanwoo Choi <cw00.c...@samsung.com>
---
 drivers/scsi/ufs/ufshcd.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index e491c4bda32f..e8c5ba274830 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6250,8 +6250,6 @@ void ufshcd_remove(struct ufs_hba *hba)
        ufshcd_hba_stop(hba, true);
 
        ufshcd_exit_clk_gating(hba);
-       if (ufshcd_is_clkscaling_enabled(hba))
-               devfreq_remove_device(hba->devfreq);
        ufshcd_hba_exit(hba);
 }
 EXPORT_SYMBOL_GPL(ufshcd_remove);
@@ -6579,7 +6577,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem 
*mmio_base, unsigned int irq)
        }
 
        if (ufshcd_is_clkscaling_enabled(hba)) {
-               hba->devfreq = devfreq_add_device(dev, &ufs_devfreq_profile,
+               hba->devfreq = devm_devfreq_add_device(dev, 
&ufs_devfreq_profile,
                                                   "simple_ondemand", NULL);
                if (IS_ERR(hba->devfreq)) {
                        dev_err(hba->dev, "Unable to register with devfreq 
%ld\n",
-- 
1.9.1

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