From: Muhammad Falak R Wani <falakreyaz@gmail.com>
Date: Thu, 19 May 2016 13:56:50 +0000 (+0530)
Subject: net: usb: ch9200: use kmemdup
X-Git-Tag: v4.7-rc1~96^2~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=238a9584e9e2c7b3ea23924e9183fee05d584789;p=thirdparty%2Fkernel%2Flinux.git

net: usb: ch9200: use kmemdup

Use kmemdup when some other buffer is immediately copied into allocated
region. It replaces call to allocation followed by memcpy, by a single
call to kmemdup.

Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/usb/ch9200.c b/drivers/net/usb/ch9200.c
index 5e151e6a3e093..8a40202c0a173 100644
--- a/drivers/net/usb/ch9200.c
+++ b/drivers/net/usb/ch9200.c
@@ -155,12 +155,11 @@ static int control_write(struct usbnet *dev, unsigned char request,
 		   index, size);
 
 	if (data) {
-		buf = kmalloc(size, GFP_KERNEL);
+		buf = kmemdup(data, size, GFP_KERNEL);
 		if (!buf) {
 			err = -ENOMEM;
 			goto err_out;
 		}
-		memcpy(buf, data, size);
 	}
 
 	err = usb_control_msg(dev->udev,