Patch "scsi: hisi_sas: Replace with standard error code return value" has been added to the 4.19-stable tree

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

    scsi: hisi_sas: Replace with standard error code return value

to the 4.19-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-hisi_sas-replace-with-standard-error-code-retur.patch
and it can be found in the queue-4.19 subdirectory.

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



commit 202706383eb6753cc4a69a2f22b69d5d5dcb36ff
Author: Yihang Li <liyihang9@xxxxxxxxxx>
Date:   Thu Dec 14 11:45:13 2023 +0800

    scsi: hisi_sas: Replace with standard error code return value
    
    [ Upstream commit d34ee535705eb43885bc0f561c63046f697355ad ]
    
    In function hisi_sas_controller_prereset(), -ENOSYS (Function not
    implemented) should be returned if the driver does not support .soft_reset.
    Returns -EPERM (Operation not permitted) if HISI_SAS_RESETTING_BIT is
    already be set.
    
    In function _suspend_v3_hw(), returns -EPERM (Operation not permitted) if
    HISI_SAS_RESETTING_BIT is already be set.
    
    Fixes: 4522204ab218 ("scsi: hisi_sas: tidy host controller reset function a bit")
    Signed-off-by: Yihang Li <liyihang9@xxxxxxxxxx>
    Signed-off-by: Xiang Chen <chenxiang66@xxxxxxxxxxxxx>
    Link: https://lore.kernel.org/r/1702525516-51258-3-git-send-email-chenxiang66@xxxxxxxxxxxxx
    Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index de4f41bce8e9..076abeb11ed4 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1381,10 +1381,10 @@ static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba)
 	int rc;
 
 	if (!hisi_hba->hw->soft_reset)
-		return -1;
+		return -ENOENT;
 
 	if (test_and_set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags))
-		return -1;
+		return -EPERM;
 
 	dev_info(dev, "controller resetting...\n");
 	hisi_sas_controller_reset_prepare(hisi_hba);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 16b7ea556118..c5ffaa32bdd9 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -2546,7 +2546,7 @@ static int hisi_sas_v3_suspend(struct pci_dev *pdev, pm_message_t state)
 	}
 
 	if (test_and_set_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags))
-		return -1;
+		return -EPERM;
 
 	scsi_block_requests(shost);
 	set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);




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