diff options
| author | Julia Lawall <julia@diku.dk> | 2010-05-15 23:21:43 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-17 16:31:15 -0700 |
| commit | 94002c07ff0e207a883519ccc35c0b5390b29331 (patch) | |
| tree | b730a75ef2ad76d1e3a322e5982b30ca46b6c487 /drivers/staging/rtl8192u | |
| parent | 96fe9ee2c2dfe3268961f3873ea6098b9b9f27c2 (diff) | |
Staging: 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: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/rtl8192u')
| -rw-r--r-- | drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c | 7 | ||||
| -rw-r--r-- | drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c | 3 |
2 files changed, 4 insertions, 6 deletions
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c index a6955e2b45c..a2e84c57857 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c @@ -1579,10 +1579,9 @@ static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen) if(*(t++) == MFIE_TYPE_CHALLENGE){ *chlen = *(t++); - *challenge = kmalloc(*chlen, GFP_ATOMIC); + *challenge = kmemdup(t, *chlen, GFP_ATOMIC); if (!*challenge) return -ENOMEM; - memcpy(*challenge, t, *chlen); } } @@ -2870,11 +2869,11 @@ static int ieee80211_wpa_set_wpa_ie(struct ieee80211_device *ieee, return -EINVAL; if (param->u.wpa_ie.len) { - buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL); + buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len, + GFP_KERNEL); if (buf == NULL) return -ENOMEM; - memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len); kfree(ieee->wpa_ie); ieee->wpa_ie = buf; ieee->wpa_ie_len = param->u.wpa_ie.len; diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c index 79b180f79e8..fb78ed2876e 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c @@ -847,10 +847,9 @@ int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len) printk("len:%zu, ie:%d\n", len, ie[1]); return -EINVAL; } - buf = kmalloc(len, GFP_KERNEL); + buf = kmemdup(ie, len, GFP_KERNEL); if (buf == NULL) return -ENOMEM; - memcpy(buf, ie, len); kfree(ieee->wpa_ie); ieee->wpa_ie = buf; ieee->wpa_ie_len = len; |