[SK_BUFF]: Some more skb_put cases converted to skb_reset_network_header

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index d329718..dde51fb 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1126,7 +1126,8 @@
 			 *	Find where to start putting bytes.
 			 */
 			data = skb_put(skb, fragheaderlen + fraggap);
-			skb->nh.iph = iph = (struct iphdr *)data;
+			skb_reset_network_header(skb);
+			iph = skb->nh.iph;
 			data += fragheaderlen;
 			skb->h.raw = data;