From: YueHaibing <yuehaibing@huawei.com>
Date: Thu, 9 Aug 2018 06:44:29 +0000 (+0800)
Subject: ieee802154: Use kmemdup instead of duplicating it in ca8210_test_int_driver_write
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=5b3686c7aaade973b8806dba4ecc99bec8c988f3;p=openwrt%2Fstaging%2Fblogic.git

ieee802154: Use kmemdup instead of duplicating it in ca8210_test_int_driver_write

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

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
---

diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c
index 58299fb666ed..e21279dde85c 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);