linux-kernel - [PATCH 1/3] scsi: ufs: Use devm_kcalloc() in ufshcd_memory

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Message-ID: <ac344c69-44ef-07e3-a039-ad4e9a99b1d6@users.sourceforge.net>
Date:   Tue, 25 Apr 2017 22:26:05 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-scsi@...r.kernel.org,
        "James E. J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Vinayak Holikatti <vinholikatti@...il.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 1/3] scsi: ufs: Use devm_kcalloc() in ufshcd_memory_alloc()

From: Markus Elfring <elfring@...rs.sourceforge.net>
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 <elfring@...rs.sourceforge.net>
---
 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