[NET]: kfree cleanup

From: Jesper Juhl <jesper.juhl@gmail.com>

This is the net/ part of the big kfree cleanup patch.

Remove pointless checks for NULL prior to calling kfree() in net/.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index a021c34..e0ace7c 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -238,8 +238,7 @@
 	lock_sock(sk);
 	dp->dccps_service = service;
 
-	if (dp->dccps_service_list != NULL)
-		kfree(dp->dccps_service_list);
+	kfree(dp->dccps_service_list);
 
 	dp->dccps_service_list = sl;
 	release_sock(sk);