[IPV6]: Fix tclass setting for raw sockets.

np->cork.tclass is used only in cork'ed context.
Otherwise, np->tclass should be used.

Bug#7096 reported by Remi Denis-Courmont <rdenis@simphalempin.com>.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c
index 3d6e9a3..356a8a7 100644
--- a/net/ipv6/icmp.c
+++ b/net/ipv6/icmp.c
@@ -401,7 +401,7 @@
 	if (hlimit < 0)
 		hlimit = ipv6_get_hoplimit(dst->dev);
 
-	tclass = np->cork.tclass;
+	tclass = np->tclass;
 	if (tclass < 0)
 		tclass = 0;
 
@@ -497,7 +497,7 @@
 	if (hlimit < 0)
 		hlimit = ipv6_get_hoplimit(dst->dev);
 
-	tclass = np->cork.tclass;
+	tclass = np->tclass;
 	if (tclass < 0)
 		tclass = 0;