From: Julia Lawall <julia@xxxxxxx> 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@xxxxxxx> --- drivers/net/wireless/libertas_tf/if_usb.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff -u -p a/drivers/net/wireless/libertas_tf/if_usb.c b/drivers/net/wireless/libertas_tf/if_usb.c --- a/drivers/net/wireless/libertas_tf/if_usb.c +++ b/drivers/net/wireless/libertas_tf/if_usb.c @@ -538,7 +538,8 @@ static void if_usb_receive_fwload(struct 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 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", -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
