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 8af0b9902615fc5032d27d5ddeb70481792ee372..aefffac556a66c7c273b3cc32fc8b2d33a4a0a7e 100644 (file)
--- 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);