Re: [PATCH 1/3] scsi: ufs: Use devm_kcalloc() in ufshcd_memory_alloc()

[Subhash Jadavani]

On 2017-04-25 13:26, SF Markus Elfring wrote:

From: Markus Elfring 
Date: Tue, 25 Apr 2017 21:45:25 +0200

* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "devm_kcalloc".

* Replace the specification of a data structure by a pointer 
dereference

  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring 
---
 drivers/scsi/ufs/ufshcd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 9ef8ce7f01a2..ce385911a20e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -3270,8 +3270,7 @@ static int ufshcd_memory_alloc(struct ufs_hba 
*hba)

}

/* Allocate memory for local reference block */
-   hba->lrb = devm_kzalloc(hba->dev,
-   hba->nutrs * sizeof(struct ufshcd_lrb),
+   hba->lrb = devm_kcalloc(hba->dev, hba->nutrs, sizeof(*hba->lrb),
GFP_KERNEL);
if (!hba->lrb) {
dev_err(hba->dev, "LRB Memory allocation failed\n");


Looks good to me.
Reviewed-by: Subhash Jadavani 

--
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[PATCH 1/3] scsi: ufs: Use devm_kcalloc() in ufshcd_memory_alloc()

[SF Markus Elfring]

From: Markus Elfring 
Date: Tue, 25 Apr 2017 21:45:25 +0200

* A multiplication for the size determination of a memory allocation
  indicated that an array data structure should be processed.
  Thus use the corresponding function "devm_kcalloc".

* Replace the specification of a data structure by a pointer dereference
  to make the corresponding size determination a bit safer according to
  the Linux coding style convention.

Signed-off-by: Markus Elfring 
---
 drivers/scsi/ufs/ufshcd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 9ef8ce7f01a2..ce385911a20e 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -3270,8 +3270,7 @@ static int ufshcd_memory_alloc(struct ufs_hba *hba)
}
 
/* Allocate memory for local reference block */
-   hba->lrb = devm_kzalloc(hba->dev,
-   hba->nutrs * sizeof(struct ufshcd_lrb),
+   hba->lrb = devm_kcalloc(hba->dev, hba->nutrs, sizeof(*hba->lrb),
GFP_KERNEL);
if (!hba->lrb) {
dev_err(hba->dev, "LRB Memory allocation failed\n");
-- 
2.12.2