From 8ca1a40b9f9defe7981ed9558b856a012e51b842 Mon Sep 17 00:00:00 2001
From: jintae jang <jt77.jang@samsung.com>
Date: Thu, 3 Dec 2020 14:25:32 +0900
Subject: [PATCH] scsi: ufs: Adjust ufshcd_hold() during sending attribute
requests
Invalidation check of arguments should have been checked before
ufshcd_hold(). This can help to prevent ufshcd_hold()/ ufshcd_release()
from being invoked unnecessarily.
[mkp: removed unused out: labels]
Link: https://lore.kernel.org/r/1606973132-5937-1-git-send-email-user@jang-Samsung-DeskTop-System
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: jintae jang <jt77.jang@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---
drivers/scsi/ufs/ufshcd.c | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index e754191dbf5fa..a41ee9cd26bad 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -2975,14 +2975,14 @@ int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode,
BUG_ON(!hba);
- ufshcd_hold(hba, false);
if (!attr_val) {
dev_err(hba->dev, "%s: attribute value required for opcode 0x%x\n",
__func__, opcode);
- err = -EINVAL;
- goto out;
+ return -EINVAL;
}
+ ufshcd_hold(hba, false);
+
mutex_lock(&hba->dev_cmd.lock);
ufshcd_init_query(hba, &request, &response, opcode, idn, index,
selector);
@@ -3014,7 +3014,6 @@ int ufshcd_query_attr(struct ufs_hba *hba, enum query_opcode opcode,
out_unlock:
mutex_unlock(&hba->dev_cmd.lock);
-out:
ufshcd_release(hba);
return err;
}
@@ -3066,21 +3065,20 @@ static int __ufshcd_query_descriptor(struct ufs_hba *hba,
BUG_ON(!hba);
- ufshcd_hold(hba, false);
if (!desc_buf) {
dev_err(hba->dev, "%s: descriptor buffer required for opcode 0x%x\n",
__func__, opcode);
- err = -EINVAL;
- goto out;
+ return -EINVAL;
}
if (*buf_len < QUERY_DESC_MIN_SIZE || *buf_len > QUERY_DESC_MAX_SIZE) {
dev_err(hba->dev, "%s: descriptor buffer size (%d) is out of range\n",
__func__, *buf_len);
- err = -EINVAL;
- goto out;
+ return -EINVAL;
}
+ ufshcd_hold(hba, false);
+
mutex_lock(&hba->dev_cmd.lock);
ufshcd_init_query(hba, &request, &response, opcode, idn, index,
selector);
@@ -3115,7 +3113,6 @@ static int __ufshcd_query_descriptor(struct ufs_hba *hba,
out_unlock:
hba->dev_cmd.query.descriptor = NULL;
mutex_unlock(&hba->dev_cmd.lock);
-out:
ufshcd_release(hba);
return err;
}
--
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