SCTP: fix wrong debug counting of bind_bucket

Should not count it if the allocation of the object
is failed.
Signed-off-by: NLi Zefan <lizf@cn.fujitsu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/sctp/socket.c

@@ -5761,8 +5761,8 @@ static struct sctp_bind_bucket *sctp_bucket_create(
 	struct sctp_bind_bucket *pp;
 
 	pp = kmem_cache_alloc(sctp_bucket_cachep, GFP_ATOMIC);
-	SCTP_DBG_OBJCNT_INC(bind_bucket);
 	if (pp) {
+		SCTP_DBG_OBJCNT_INC(bind_bucket);
 		pp->port = snum;
 		pp->fastreuse = 0;
 		INIT_HLIST_HEAD(&pp->owner);