From 9945cf9997b5fc10b47c010cdb40b2753ccc77d9 Mon Sep 17 00:00:00 2001
From: Shyam Saini <mayhs11saini@gmail.com>
Date: Fri, 23 Dec 2016 17:34:36 -0200
Subject: [PATCH] [media] media: usb: cpia2: Use kmemdup instead of kmalloc and
 memcpy

When some other buffer is immediately copied into allocated region.
Replace calls to kmalloc followed by a memcpy with a direct
call to kmemdup.

Signed-off-by: Shyam Saini <mayhs11saini@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
---
 drivers/media/usb/cpia2/cpia2_usb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/media/usb/cpia2/cpia2_usb.c b/drivers/media/usb/cpia2/cpia2_usb.c
index 7a50662348f6..1c7e16e5d88b 100644
--- a/drivers/media/usb/cpia2/cpia2_usb.c
+++ b/drivers/media/usb/cpia2/cpia2_usb.c
@@ -547,12 +547,10 @@ static int write_packet(struct usb_device *udev,
 	if (!registers || size <= 0)
 		return -EINVAL;
 
-	buf = kmalloc(size, GFP_KERNEL);
+	buf = kmemdup(registers, size, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
 
-	memcpy(buf, registers, size);
-
 	ret = usb_control_msg(udev,
 			       usb_sndctrlpipe(udev, 0),
 			       request,