From: Xiaochen Wang <wangxiaochen0@gmail.com>
Date: Sun, 6 Mar 2011 14:04:15 +0000 (+0800)
Subject: staging: rtl8192e use kmemdup and check its return value
X-Git-Tag: MMI-PSA29.97-13-9~20521^2~243
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9603ff50b5d56e6ee64b10116ff640320732f9c8;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

staging: rtl8192e use kmemdup and check its return value

use kmemdup instead of kmalloc and memcpy,
and check its return value

Signed-off-by: Xiaochen Wang <wangxiaochen0@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
index 88a9cd1958a8..fc96676bb9ce 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
@@ -1564,8 +1564,9 @@ 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);
-			memcpy(*challenge, t, *chlen);
+			*challenge = kmemdup(t, *chlen, GFP_ATOMIC);
+			if (!*challenge)
+				return -ENOMEM;
 		}
 	}