[NETLINK]: Avoid pointer in netlink_run_queue

I was looking at Patrick's fix to inet_diag and it occured
to me that we're using a pointer argument to return values
unnecessarily in netlink_run_queue.  Changing it to return
the value will allow the compiler to generate better code
since the value won't have to be memory-backed.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 695e613..83113df 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -220,7 +220,7 @@
 	u32			pid;
 };
 
-extern void		netlink_run_queue(struct sock *sk, unsigned int *qlen,
+extern unsigned int	netlink_run_queue(struct sock *sk, unsigned int qlen,
 					  int (*cb)(struct sk_buff *,
 						    struct nlmsghdr *));
 extern int		nlmsg_notify(struct sock *sk, struct sk_buff *skb,