diff options
| author | Julia Lawall <julia@diku.dk> | 2010-05-15 11:18:58 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-05-17 17:44:47 -0700 |
| commit | 175c04414106c34f0130d8d3bf152825b4829ceb (patch) | |
| tree | e75156f45768c01199fb270445dcbdf37d005b16 | |
| parent | 08d18f3b62b4c05731a09eca2b432842a0a18da5 (diff) | |
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/pegasus.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c index 1cd17d274a12..974d17f0263e 100644 --- a/drivers/net/usb/pegasus.c +++ b/drivers/net/usb/pegasus.c @@ -203,13 +203,12 @@ static int set_registers(pegasus_t * pegasus, __u16 indx, __u16 size, char *buffer; DECLARE_WAITQUEUE(wait, current); - buffer = kmalloc(size, GFP_KERNEL); + buffer = kmemdup(data, size, GFP_KERNEL); if (!buffer) { netif_warn(pegasus, drv, pegasus->net, "out of memory in %s\n", __func__); return -ENOMEM; } - memcpy(buffer, data, size); add_wait_queue(&pegasus->ctrl_wait, &wait); set_current_state(TASK_UNINTERRUPTIBLE); @@ -255,13 +254,12 @@ static int set_register(pegasus_t * pegasus, __u16 indx, __u8 data) char *tmp; DECLARE_WAITQUEUE(wait, current); - tmp = kmalloc(1, GFP_KERNEL); + tmp = kmemdup(&data, 1, GFP_KERNEL); if (!tmp) { netif_warn(pegasus, drv, pegasus->net, "out of memory in %s\n", __func__); return -ENOMEM; } - memcpy(tmp, &data, 1); add_wait_queue(&pegasus->ctrl_wait, &wait); set_current_state(TASK_UNINTERRUPTIBLE); while (pegasus->flags & ETH_REGS_CHANGED) |