linux-kernel - [PATCH 8/9] IB/isert: Use kcalloc() in isert_alloc_rx

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Date:   Fri, 7 Apr 2017 23:08:19 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-rdma@...r.kernel.org, target-devel@...r.kernel.org,
        David Ahern <dsa@...ulusnetworks.com>,
        Doug Ledford <dledford@...hat.com>,
        Erez Shitrit <erezsh@...lanox.com>,
        Feras Daoud <ferasda@...lanox.com>,
        Hal Rosenstock <hal.rosenstock@...il.com>,
        Leon Romanovsky <leon@...nel.org>,
        Mark Bloch <markb@...lanox.com>,
        Or Gerlitz <ogerlitz@...lanox.com>,
        Paolo Abeni <pabeni@...hat.com>, Roi Dayan <roid@...lanox.com>,
        Sagi Grimberg <sagi@...mberg.me>,
        Sean Hefty <sean.hefty@...el.com>,
        Yuval Shaia <yuval.shaia@...cle.com>,
        Zhu Yanjun <yanjun.zhu@...cle.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 8/9] IB/isert: Use kcalloc() in isert_alloc_rx_descriptors()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 7 Apr 2017 22:00:43 +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 "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/infiniband/ulp/isert/ib_isert.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 91cbe86b25c8..c56af6183082 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -181,8 +181,9 @@ isert_alloc_rx_descriptors(struct isert_conn *isert_conn)
 	u64 dma_addr;
 	int i, j;
 
-	isert_conn->rx_descs = kzalloc(ISERT_QP_MAX_RECV_DTOS *
-				sizeof(struct iser_rx_desc), GFP_KERNEL);
+	isert_conn->rx_descs = kcalloc(ISERT_QP_MAX_RECV_DTOS,
+				       sizeof(*isert_conn->rx_descs),
+				       GFP_KERNEL);
 	if (!isert_conn->rx_descs)
 		return -ENOMEM;
 
-- 
2.12.2