diff options
| author | Julia Lawall <julia@diku.dk> | 2010-05-15 15:20:45 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-18 04:44:47 +0400 |
| commit | 99bf236612801351834b441314379bc5304d62ce (patch) | |
| tree | 56922d148dedd5d6fc19e6da0629d6f2dfcec007 | |
| parent | 175c04414106c34f0130d8d3bf152825b4829ceb (diff) | |
| download | linux-99bf236612801351834b441314379bc5304d62ce.tar.xz | |
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/)
// <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: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/usb/asix.c | 3 | ||||
| -rw-r--r-- | drivers/net/usb/mcs7830.c | 4 |
2 files changed, 2 insertions, 5 deletions
diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c index 66c5e89326c1..31b73310ec77 100644 --- a/drivers/net/usb/asix.c +++ b/drivers/net/usb/asix.c @@ -224,10 +224,9 @@ static int asix_write_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, cmd, value, index, size); if (data) { - buf = kmalloc(size, GFP_KERNEL); + buf = kmemdup(data, size, GFP_KERNEL); if (!buf) goto out; - memcpy(buf, data, size); } err = usb_control_msg( diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c index 834d8cd3005d..a6281e3987b5 100644 --- a/drivers/net/usb/mcs7830.c +++ b/drivers/net/usb/mcs7830.c @@ -142,12 +142,10 @@ static int mcs7830_set_reg(struct usbnet *dev, u16 index, u16 size, const void * int ret; void *buffer; - buffer = kmalloc(size, GFP_NOIO); + buffer = kmemdup(data, size, GFP_NOIO); if (buffer == NULL) return -ENOMEM; - memcpy(buffer, data, size); - ret = usb_control_msg(xdev, usb_sndctrlpipe(xdev, 0), MCS7830_WR_BREQ, MCS7830_WR_BMREQ, 0x0000, index, buffer, size, MCS7830_CTRL_TIMEOUT); |