[PATCH v2 2/4] scsi: ufs: Simplify ufshcd_wl_shutdown()

[Bart Van Assche <bvanassche@acm.org>]

Now that sd_shutdown() fails future I/O the code for quiescing LUNs in
ufshcd_wl_shutdown() is superfluous. Remove the code for quiescing LUNs.
Also remove the ufshcd_rpm_get_sync() call because it is not necessary
to resume a UFS device before submitting a START STOP UNIT command.

Cc: Asutosh Das <asutoshd@codeaurora.org>
Cc: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/ufs/core/ufshcd.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 9434328ba323..784787cf08c3 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -9768,22 +9768,12 @@ static int ufshcd_wl_resume(struct device *dev)
 static void ufshcd_wl_shutdown(struct device *dev)
 {
 	struct scsi_device *sdev = to_scsi_device(dev);
-	struct ufs_hba *hba;
-
-	hba = shost_priv(sdev->host);
+	struct ufs_hba *hba = shost_priv(sdev->host);
 
 	down(&hba->host_sem);
 	hba->shutting_down = true;
 	up(&hba->host_sem);
 
-	/* Turn on everything while shutting down */
-	ufshcd_rpm_get_sync(hba);
-	scsi_device_quiesce(sdev);
-	shost_for_each_device(sdev, hba->host) {
-		if (sdev == hba->ufs_device_wlun)
-			continue;
-		scsi_device_quiesce(sdev);
-	}
 	__ufshcd_wl_suspend(hba, UFS_SHUTDOWN_PM);
 }