[NETNS][RAW]: Eliminate explicit init_net references.

Happily, in all the rest places (->bind callbacks only), that require the
struct net, we have a socket, so get the net from it.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 4e95372..206c869 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -625,7 +625,7 @@
 
 	if (sk->sk_state != TCP_CLOSE || addr_len < sizeof(struct sockaddr_in))
 		goto out;
-	chk_addr_ret = inet_addr_type(&init_net, addr->sin_addr.s_addr);
+	chk_addr_ret = inet_addr_type(sk->sk_net, addr->sin_addr.s_addr);
 	ret = -EADDRNOTAVAIL;
 	if (addr->sin_addr.s_addr && chk_addr_ret != RTN_LOCAL &&
 	    chk_addr_ret != RTN_MULTICAST && chk_addr_ret != RTN_BROADCAST)