[patch v1 01/12] netfilter: nf_conntrack_sip: Allow ct_sip_get_header() to be called with a null ct argument

[Simon Horman <horms@xxxxxxxxxxxx>]

Signed-off-by: Simon Horman <horms@xxxxxxxxxxxx>

--- 

The motivation for this is to allow ct_sip_get_header() to be
used by LVS without connection tracking as per subsequent patches.
Index: nf-next-2.6/net/netfilter/nf_conntrack_sip.c
===================================================================
--- nf-next-2.6.orig/net/netfilter/nf_conntrack_sip.c   2010-07-14 
20:40:40.000000000 +0900
+++ nf-next-2.6/net/netfilter/nf_conntrack_sip.c        2010-07-14 
21:15:06.000000000 +0900
@@ -152,6 +152,9 @@ static int parse_addr(const struct nf_co
        const char *end;
        int ret = 0;
 
+       if (!ct)
+               return 0;
+
        memset(addr, 0, sizeof(*addr));
        switch (nf_ct_l3num(ct)) {
        case AF_INET:

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