From: Hema Prathaban <hemaklnce@gmail.com>
Date: Tue, 14 May 2013 15:31:22 +0000 (+0530)
Subject: staging: rtl8192e: Use kmemdup for duplicating memory
X-Git-Tag: firefly_0821_release~176^2~5845^2~745
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=6dea0da1fff9ec1fcfc989e13cde451d5e7604ce;p=firefly-linux-kernel-4.4.55.git

staging: rtl8192e: Use kmemdup for duplicating memory

Instead of allocating memory (kmalloc) and copying (memcpy)
from source, memory can be duplicated using kmemdup

Signed-off-by: Hema Prathaban <hemaklnce@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index 8af0b9902615..aefffac556a6 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -1801,10 +1801,9 @@ 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);
 		}
 	}
 	return cpu_to_le16(a->status);