[SUNRPC]: Use k{mem,str}dup where applicable

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index b36b946..e5a84a4 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -198,11 +198,10 @@
 	q = (const void *)((const char *)p + len);
 	if (unlikely(q > end || q < p))
 		return ERR_PTR(-EFAULT);
-	dest->data = kmalloc(len, GFP_KERNEL);
+	dest->data = kmemdup(p, len, GFP_KERNEL);
 	if (unlikely(dest->data == NULL))
 		return ERR_PTR(-ENOMEM);
 	dest->len = len;
-	memcpy(dest->data, p, len);
 	return q;
 }