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From:   YueHaibing <yuehaibing@huawei.com>
To:     <davem@davemloft.net>, <h.morris@cascoda.com>,
        <alex.aring@gmail.com>, <stefan@datenfreihafen.org>
CC:     <linux-kernel@vger.kernel.org>, <netdev@vger.kernel.org>,
        <linux-wpan@vger.kernel.org>, YueHaibing <yuehaibing@huawei.com>
Subject: [PATCH net-next] ieee802154: Use kmemdup instead of duplicating it in ca8210_test_int_driver_write
Date:   Thu, 9 Aug 2018 14:44:29 +0800
Message-ID: <20180809064429.13348-1-yuehaibing@huawei.com>
MIME-Version: 1.0
Content-Type: text/plain
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Replace calls to kmalloc followed by a memcpy with a direct call to
kmemdup.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
---
 drivers/net/ieee802154/ca8210.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c
index 58299fb..e21279d 100644
--- a/drivers/net/ieee802154/ca8210.c
+++ b/drivers/net/ieee802154/ca8210.c
@@ -634,10 +634,9 @@ static int ca8210_test_int_driver_write(
 	for (i = 0; i < len; i++)
 		dev_dbg(&priv->spi->dev, "%#03x\n", buf[i]);
 
-	fifo_buffer = kmalloc(len, GFP_KERNEL);
+	fifo_buffer = kmemdup(buf, len, GFP_KERNEL);
 	if (!fifo_buffer)
 		return -ENOMEM;
-	memcpy(fifo_buffer, buf, len);
 	kfifo_in(&test->up_fifo, &fifo_buffer, 4);
 	wake_up_interruptible(&priv->test.readq);
 
-- 
2.7.0