net_sched: fix another regression in cls_tcindex

Clearly the following change is not expected:

	-       if (!cp.perfect && !cp.h)
	-               cp.alloc_hash = cp.hash;
	+       if (!cp->perfect && cp->h)
	+               cp->alloc_hash = cp->hash;

Fixes: commit 331b729 ("net: sched: RCU cls_tcindex")
Cc: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/cls_tcindex.c

@@ -303,7 +303,7 @@ tcindex_set_parms(struct net *net, struct tcf_proto *tp, unsigned long base,
 			cp->hash = DEFAULT_HASH_SIZE;
 	}
 
-	if (!cp->perfect && cp->h)
+	if (!cp->perfect && !cp->h)
 		cp->alloc_hash = cp->hash;
 
 	/* Note: this could be as restrictive as if (handle & ~(mask >> shift))