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scsi: hisi_sas: Replace with standard error code return value

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[ Upstream commit d34ee53570 ]

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: 4522204ab2 ("scsi: hisi_sas: tidy host controller reset function a bit")
Signed-off-by: Yihang Li <liyihang9@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1702525516-51258-3-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yihang Li 2023-12-14 11:45:13 +08:00 committed by Greg Kroah-Hartman
parent 0d17931d7e
commit 84e174afb5
2 changed files with 3 additions and 3 deletions
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4
drivers/scsi/hisi_sas/hisi_sas_main.c
View File

@ -1584,12 +1584,12 @@ EXPORT_SYMBOL_GPL(hisi_sas_controller_reset_done);
static int hisi_sas_controller_prereset(struct hisi_hba *hisi_hba)
{
if (!hisi_hba->hw->soft_reset)
return -1;
return -ENOENT;
down(&hisi_hba->sem);
if (test_and_set_bit(HISI_SAS_RESETTING_BIT, &hisi_hba->flags)) {
up(&hisi_hba->sem);
return -1;
return -EPERM;
}
if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct[0].itct)

2
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
View File

@ -4983,7 +4983,7 @@ static int _suspend_v3_hw(struct device *device)
}
if (test_and_set_bit(HISI_SAS_RESETTING_BIT, &hisi_hba->flags))
return -1;
return -EPERM;
scsi_block_requests(shost);
set_bit(HISI_SAS_REJECT_CMD_BIT, &hisi_hba->flags);