ipv6: Remove some pointless conditionals before kfree_skb()

---
 net/ipv6/ipv6_sockglue.c | 3 +--
 net/ipv6/tcp_ipv6.c      | 6 ++----
 2 files changed, 3 insertions(+), 6 deletions(-)
 
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 40f3246..d31df0f 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -218,8 +218,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 			if (opt)
 				sock_kfree_s(sk, opt, opt->tot_len);
 			pktopt = xchg(&np->pktoptions, NULL);
-			if (pktopt)
-				kfree_skb(pktopt);
+			kfree_skb(pktopt);
 
 			sk->sk_destruct = inet_sock_destruct;
 			/*
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 00f1269..4b5aa18 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -533,8 +533,7 @@ static inline void syn_flood_warning(struct sk_buff *skb)
 
 static void tcp_v6_reqsk_destructor(struct request_sock *req)
 {
-	if (inet6_rsk(req)->pktopts)
-		kfree_skb(inet6_rsk(req)->pktopts);
+	kfree_skb(inet6_rsk(req)->pktopts);
 }
 
 #ifdef CONFIG_TCP_MD5SIG
@@ -1611,8 +1610,7 @@ ipv6_pktoptions:
 		}
 	}
 
-	if (opt_skb)
-		kfree_skb(opt_skb);
+	kfree_skb(opt_skb);
 	return 0;
 }