From: Denis V. Lunev <den@openvz.org>
Date: Wed, 8 Oct 2008 17:31:44 +0000 (-0700)
Subject: ipv6: consolidate error paths in ipv6_frag_rcv
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=98b3377ca77a06a7bd75a444e9f7136e9bb5112e;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

ipv6: consolidate error paths in ipv6_frag_rcv

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 2eeadfa039c..f4f62f08609 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -578,19 +578,12 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
 	IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMREQDS);
 
 	/* Jumbo payload inhibits frag. header */
-	if (hdr->payload_len==0) {
-		IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
-		icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
-				  skb_network_header_len(skb));
-		return -1;
-	}
+	if (hdr->payload_len==0)
+		goto fail_hdr;
+
 	if (!pskb_may_pull(skb, (skb_transport_offset(skb) +
-				 sizeof(struct frag_hdr)))) {
-		IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
-		icmpv6_param_prob(skb, ICMPV6_HDR_FIELD,
-				  skb_network_header_len(skb));
-		return -1;
-	}
+				 sizeof(struct frag_hdr))))
+		goto fail_hdr;
 
 	hdr = ipv6_hdr(skb);
 	fhdr = (struct frag_hdr *)skb_transport_header(skb);
@@ -624,6 +617,11 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
 	IP6_INC_STATS_BH(ip6_dst_idev(skb->dst), IPSTATS_MIB_REASMFAILS);
 	kfree_skb(skb);
 	return -1;
+
+fail_hdr:
+	IP6_INC_STATS(ip6_dst_idev(skb->dst), IPSTATS_MIB_INHDRERRORS);
+	icmpv6_param_prob(skb, ICMPV6_HDR_FIELD, skb_network_header_len(skb));
+	return -1;
 }
 
 static struct inet6_protocol frag_protocol =