[PATCH v2 3/3] scsi: ufs: Remove redundant checks of !hba in suspend/resume callbacks

From: Can Guo
Date: Wed Feb 24 2021 - 00:38:16 EST


Runtime and system suspend/resume can only come after hba probe invokes
platform_set_drvdata(pdev, hba), meaning hba cannot be NULL in these PM
callbacks, so remove the checks of !hba.

Signed-off-by: Can Guo <cang@xxxxxxxxxxxxxx>
---
drivers/scsi/ufs/ufshcd.c | 21 ---------------------
1 file changed, 21 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 013eb73..2517ef1 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -95,8 +95,6 @@
16, 4, buf, __len, false); \
} while (0)

-static bool early_suspend;
-
int ufshcd_dump_regs(struct ufs_hba *hba, size_t offset, size_t len,
const char *prefix)
{
@@ -8978,11 +8976,6 @@ int ufshcd_system_suspend(struct ufs_hba *hba)
int ret = 0;
ktime_t start = ktime_get();

- if (!hba) {
- early_suspend = true;
- return 0;
- }
-
down(&hba->host_sem);

if (!hba->is_powered)
@@ -9034,14 +9027,6 @@ int ufshcd_system_resume(struct ufs_hba *hba)
int ret = 0;
ktime_t start = ktime_get();

- if (!hba)
- return -EINVAL;
-
- if (unlikely(early_suspend)) {
- early_suspend = false;
- down(&hba->host_sem);
- }
-
if (!hba->is_powered || pm_runtime_suspended(hba->dev))
/*
* Let the runtime resume take care of resuming
@@ -9074,9 +9059,6 @@ int ufshcd_runtime_suspend(struct ufs_hba *hba)
int ret = 0;
ktime_t start = ktime_get();

- if (!hba)
- return -EINVAL;
-
if (!hba->is_powered)
goto out;
else
@@ -9115,9 +9097,6 @@ int ufshcd_runtime_resume(struct ufs_hba *hba)
int ret = 0;
ktime_t start = ktime_get();

- if (!hba)
- return -EINVAL;
-
if (!hba->is_powered)
goto out;
else
--
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