From 5476b8b22589fe118f3c228d71406455002b79b1 Mon Sep 17 00:00:00 2001
From: Julia Lawall
Date: Sat, 15 May 2010 11:23:15 +0000
Subject: drivers/net/usb: 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/)
//
@@
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);
//
Signed-off-by: Julia Lawall
Signed-off-by: David S. Miller
---
drivers/net/usb/dm9601.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/net/usb/dm9601.c b/drivers/net/usb/dm9601.c
index 47634b617107..02b622e3b9fb 100644
--- a/drivers/net/usb/dm9601.c
+++ b/drivers/net/usb/dm9601.c
@@ -93,10 +93,9 @@ static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data)
netdev_dbg(dev->net, "dm_write() reg=0x%02x, length=%d\n", reg, length);
if (data) {
- buf = kmalloc(length, GFP_KERNEL);
+ buf = kmemdup(data, length, GFP_KERNEL);
if (!buf)
goto out;
- memcpy(buf, data, length);
}
err = usb_control_msg(dev->udev,
--
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