Patch "scsi: ufs: core: Simplify power management during async scan" has been added to the 5.15-stable tree

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This is a note to let you know that I've just added the patch titled

    scsi: ufs: core: Simplify power management during async scan

to the 5.15-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     scsi-ufs-core-simplify-power-management-during-async.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 357e1608ab410b1e9ac768c84b6460cb3d2b916a
Author: Bart Van Assche <bvanassche@xxxxxxx>
Date:   Mon Dec 18 14:52:14 2023 -0800

    scsi: ufs: core: Simplify power management during async scan
    
    [ Upstream commit daf7795406bf307997366f694888bd317ae5b5fa ]
    
    ufshcd_init() calls pm_runtime_get_sync() before it calls
    async_schedule(). ufshcd_async_scan() calls pm_runtime_put_sync() directly
    or indirectly from ufshcd_add_lus(). Simplify ufshcd_async_scan() by always
    calling pm_runtime_put_sync() from ufshcd_async_scan().
    
    Cc: <stable@xxxxxxxxxxxxxxx>
    Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
    Link: https://lore.kernel.org/r/20231218225229.2542156-2-bvanassche@xxxxxxx
    Reviewed-by: Can Guo <quic_cang@xxxxxxxxxxx>
    Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx>
    Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
    Stable-dep-of: ee36710912b2 ("scsi: ufs: core: Remove the ufshcd_hba_exit() call from ufshcd_async_scan()")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index e78461f66400..0354e3bce455 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -7896,7 +7896,6 @@ static int ufshcd_add_lus(struct ufs_hba *hba)
 	ufs_bsg_probe(hba);
 	ufshpb_init(hba);
 	scsi_scan_host(hba->host);
-	pm_runtime_put_sync(hba->dev);
 
 out:
 	return ret;
@@ -8018,15 +8017,15 @@ static void ufshcd_async_scan(void *data, async_cookie_t cookie)
 
 	/* Probe and add UFS logical units  */
 	ret = ufshcd_add_lus(hba);
+
 out:
+	pm_runtime_put_sync(hba->dev);
 	/*
 	 * If we failed to initialize the device or the device is not
 	 * present, turn off the power/clocks etc.
 	 */
-	if (ret) {
-		pm_runtime_put_sync(hba->dev);
+	if (ret)
 		ufshcd_hba_exit(hba);
-	}
 }
 
 static const struct attribute_group *ufshcd_driver_groups[] = {




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