[IGMP]: Optimize kfree_skb in igmp_rcv.
Merge error paths inside igmp_rcv.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 994648b..732cd07 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -922,13 +922,11 @@
struct in_device *in_dev = in_dev_get(skb->dev);
int len = skb->len;
- if (in_dev==NULL) {
- kfree_skb(skb);
- return 0;
- }
+ if (in_dev == NULL)
+ goto drop;
if (!pskb_may_pull(skb, sizeof(struct igmphdr)))
- goto drop;
+ goto drop_ref;
switch (skb->ip_summed) {
case CHECKSUM_COMPLETE:
@@ -938,7 +936,7 @@
case CHECKSUM_NONE:
skb->csum = 0;
if (__skb_checksum_complete(skb))
- goto drop;
+ goto drop_ref;
}
ih = igmp_hdr(skb);
@@ -972,8 +970,9 @@
break;
}
-drop:
+drop_ref:
in_dev_put(in_dev);
+drop:
kfree_skb(skb);
return 0;
}