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drivers/net/wireless/libertas_tf: Use kmemdup

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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: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Julia Lawall 2010-05-15 23:16:03 +02:00 committed by John W. Linville
parent 80caf6017a
commit 0273002953
1 changed files with 2 additions and 3 deletions
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5
drivers/net/wireless/libertas_tf/if_usb.c
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@ -538,7 +538,8 @@ static void if_usb_receive_fwload(struct urb *urb)
return;
}
syncfwheader = kmalloc(sizeof(struct fwsyncheader), GFP_ATOMIC);
syncfwheader = kmemdup(skb->data, sizeof(struct fwsyncheader),
GFP_ATOMIC);
if (!syncfwheader) {
lbtf_deb_usbd(&cardp->udev->dev, "Failure to allocate syncfwheader\n");
kfree_skb(skb);
@ -546,8 +547,6 @@ static void if_usb_receive_fwload(struct urb *urb)
return;
}
memcpy(syncfwheader, skb->data, sizeof(struct fwsyncheader));
if (!syncfwheader->cmd) {
lbtf_deb_usb2(&cardp->udev->dev, "FW received Blk with correct CRC\n");
lbtf_deb_usb2(&cardp->udev->dev, "FW received Blk seqnum = %d\n",