[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/802/p8023.c b/net/802/p8023.c
index 6368d3d..d23e906 100644
--- a/net/802/p8023.c
+++ b/net/802/p8023.c
@@ -54,8 +54,7 @@
  */
 void destroy_8023_client(struct datalink_proto *dl)
 {
-	if (dl)
-		kfree(dl);
+	kfree(dl);
 }
 
 EXPORT_SYMBOL(destroy_8023_client);