From 2b3c543a839cafeb3edd7e1a2202d86318801fd9 Mon Sep 17 00:00:00 2001
From: Julia Lawall <julia@diku.dk>
Date: Thu, 1 Jul 2010 01:41:44 -0300
Subject: V4L/DVB: drivers/media/video/tlg2300: Use kmemdup

Use kmemdup when some other buffer is immediately copied into the
allocated region.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression from,to,size,flag;
statement S;
@@

-  to = \(kmalloc\|kzalloc\)(size,flag);
+  to = kmemdup(from,size,flag);
   if (to==NULL || ...) S
-  memcpy(to, from, size);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/tlg2300/pd-main.c b/drivers/media/video/tlg2300/pd-main.c
index 256cc55..4555f4a 100644
--- a/drivers/media/video/tlg2300/pd-main.c
+++ b/drivers/media/video/tlg2300/pd-main.c
@@ -227,12 +227,11 @@ static int firmware_download(struct usb_device *udev)
 
 	fwlength = fw->size;
 
-	fwbuf = kzalloc(fwlength, GFP_KERNEL);
+	fwbuf = kmemdup(fw->data, fwlength, GFP_KERNEL);
 	if (!fwbuf) {
 		ret = -ENOMEM;
 		goto out;
 	}
-	memcpy(fwbuf, fw->data, fwlength);
 
 	max_packet_size = udev->ep_out[0x1]->desc.wMaxPacketSize;
 	log("\t\t download size : %d", (int)max_packet_size);
-- 
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