diff options
| author | jintae jang <jt77.jang@samsung.com> | 2020-12-03 14:25:32 +0900 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-12-07 20:21:53 -0500 |
| commit | 8ca1a40b9f9defe7981ed9558b856a012e51b842 (patch) | |
| tree | fdb2aae3c2100ba77904553371e681364615d73b /drivers/scsi/ufs/ufshcd.c | |
| parent | ace3804b69afa39d9445544843506eca59f3b4b2 (diff) | |
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>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.c')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index e754191dbf5f..a41ee9cd26ba 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; } |