--- zzzz-none-000/linux-2.6.39.4/net/ipv6/raw.c	2011-08-03 19:43:28.000000000 +0000
+++ puma6-atom-6490-729/linux-2.6.39.4/net/ipv6/raw.c	2021-11-10 13:38:18.000000000 +0000
@@ -169,7 +169,7 @@
 	read_lock(&raw_v6_hashinfo.lock);
 	sk = sk_head(&raw_v6_hashinfo.ht[hash]);
 
-	if (sk == NULL)
+	if (!sk)
 		goto out;
 
 	net = dev_net(skb->dev);
@@ -232,7 +232,7 @@
 	if (raw_sk && !ipv6_raw_deliver(skb, nexthdr))
 		raw_sk = NULL;
 
-	return raw_sk != NULL;
+	return !!raw_sk;
 }
 
 /* This cleans up af_inet6 a bit. -DaveM */
@@ -355,7 +355,7 @@
 
 	read_lock(&raw_v6_hashinfo.lock);
 	sk = sk_head(&raw_v6_hashinfo.ht[hash]);
-	if (sk != NULL) {
+	if (sk) {
 		/* Note: ipv6_hdr(skb) != skb->data */
 		struct ipv6hdr *ip6h = (struct ipv6hdr *)skb->data;
 		saddr = &ip6h->saddr;
@@ -621,7 +621,7 @@
 	skb = sock_alloc_send_skb(sk,
 				  length + LL_ALLOCATED_SPACE(rt->dst.dev) + 15,
 				  flags & MSG_DONTWAIT, &err);
-	if (skb == NULL)
+	if (!skb)
 		goto error;
 	skb_reserve(skb, LL_RESERVED_SPACE(rt->dst.dev));
 
@@ -782,7 +782,7 @@
 			fl6.flowlabel = sin6->sin6_flowinfo&IPV6_FLOWINFO_MASK;
 			if (fl6.flowlabel&IPV6_FLOWLABEL_MASK) {
 				flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);
-				if (flowlabel == NULL)
+				if (!flowlabel)
 					return -EINVAL;
 				daddr = &flowlabel->dst;
 			}
@@ -825,13 +825,13 @@
 		}
 		if ((fl6.flowlabel&IPV6_FLOWLABEL_MASK) && !flowlabel) {
 			flowlabel = fl6_sock_lookup(sk, fl6.flowlabel);
-			if (flowlabel == NULL)
+			if (!flowlabel)
 				return -EINVAL;
 		}
 		if (!(opt->opt_nflen|opt->opt_flen))
 			opt = NULL;
 	}
-	if (opt == NULL)
+	if (!opt)
 		opt = np->opt;
 	if (flowlabel)
 		opt = fl6_merge_options(&opt_space, flowlabel, opt);
@@ -1133,7 +1133,7 @@
 
 			spin_lock_bh(&sk->sk_receive_queue.lock);
 			skb = skb_peek(&sk->sk_receive_queue);
-			if (skb != NULL)
+			if (skb)
 				amount = skb->tail - skb->transport_header;
 			spin_unlock_bh(&sk->sk_receive_queue.lock);
 			return put_user(amount, (int __user *)arg);