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[IPV6]: make frag to return an error at initialization 

This patch makes the frag_init to return an error code, so the af_inet6
module can handle the error.

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Lezcano 2007-12-11 02:24:29 -08:00 committed by David S. Miller
parent 248b238dc9
commit 853cbbaaa4
3 changed files with 21 additions and 6 deletions
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3
include/net/transp_v6.h
View File

@ -19,7 +19,8 @@ struct flowi;
/* extention headers */
extern int ipv6_exthdrs_init(void);
extern void ipv6_exthdrs_exit(void);
extern void ipv6_frag_init(void);
extern int ipv6_frag_init(void);
extern void ipv6_frag_exit(void);
/* transport protocols */
extern void rawv6_init(void);

8
net/ipv6/af_inet6.c
View File

@ -863,7 +863,9 @@ static int __init inet6_init(void)
if (err)
goto ipv6_exthdrs_fail;
ipv6_frag_init();
err = ipv6_frag_init();
if (err)
goto ipv6_frag_fail;
/* Init v6 transport protocols. */
udpv6_init();
@ -875,6 +877,8 @@ static int __init inet6_init(void)
out:
return err;
ipv6_frag_fail:
ipv6_exthdrs_exit();
ipv6_exthdrs_fail:
addrconf_cleanup();
addrconf_fail:
@ -934,7 +938,7 @@ static void __exit inet6_exit(void)
/* Cleanup code parts. */
ipv6_packet_cleanup();
ipv6_frag_exit();
ipv6_exthdrs_exit();
addrconf_cleanup();
ip6_flowlabel_cleanup();

16
net/ipv6/reassembly.c
View File

@ -632,11 +632,13 @@ static struct inet6_protocol frag_protocol =
.flags = INET6_PROTO_NOPOLICY,
};
void __init ipv6_frag_init(void)
int __init ipv6_frag_init(void)
{
if (inet6_add_protocol(&frag_protocol, IPPROTO_FRAGMENT) < 0)
printk(KERN_ERR "ipv6_frag_init: Could not register protocol\n");
int ret;
ret = inet6_add_protocol(&frag_protocol, IPPROTO_FRAGMENT);
if (ret)
goto out;
ip6_frags.ctl = &ip6_frags_ctl;
ip6_frags.hashfn = ip6_hashfn;
ip6_frags.constructor = ip6_frag_init;
@ -646,4 +648,12 @@ void __init ipv6_frag_init(void)
ip6_frags.match = ip6_frag_match;
ip6_frags.frag_expire = ip6_frag_expire;
inet_frags_init(&ip6_frags);
out:
return ret;
}
void ipv6_frag_exit(void)
{
inet_frags_fini(&ip6_frags);
inet6_del_protocol(&frag_protocol, IPPROTO_FRAGMENT);
}