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/ipw2x00/ipw2200.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff -u -p a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c --- a/drivers/net/wireless/ipw2x00/ipw2200.c +++ b/drivers/net/wireless/ipw2x00/ipw2200.c @@ -6626,13 +6626,12 @@ static int ipw_wx_set_genie(struct net_d return -EINVAL; if (wrqu->data.length) { - buf = kmalloc(wrqu->data.length, GFP_KERNEL); + buf = kmemdup(extra, wrqu->data.length, GFP_KERNEL); if (buf == NULL) { err = -ENOMEM; goto out; } - memcpy(buf, extra, wrqu->data.length); kfree(ieee->wpa_ie); ieee->wpa_ie = buf; ieee->wpa_ie_len = wrqu->data.length; -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
