[IPV6]: make the protocol initialization to return an error code

This patchset makes the different protocols to return an error code, so
the af_inet6 module can check the initialization was correct or not.

The raw6 was taken into account to be consistent with the rest of the
protocols, but the registration is at the same place.
Because the raw6 has its own init function, the proto and the ops structure
can be moved inside the raw6.c file.

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 9 insertions, 5 deletions

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 4d9106580950..f2adedff927f 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -545,7 +545,7 @@ extern int			compat_ipv6_getsockopt(struct sock *sk,
                                                 char __user *optval,
                                                 int __user *optlen);
 
-extern void                     ipv6_packet_init(void);
+extern int                      ipv6_packet_init(void);
 
 extern void                     ipv6_packet_cleanup(void);
 
diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index aa9a4a6b99df..27394e0447d8 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -23,10 +23,14 @@ extern int				ipv6_frag_init(void);
 extern void                             ipv6_frag_exit(void);
 
 /* transport protocols */
-extern void                             rawv6_init(void);
-extern void                             udpv6_init(void);
-extern void                             udplitev6_init(void);
-extern void                             tcpv6_init(void);
+extern int                              rawv6_init(void);
+extern void                             rawv6_exit(void);
+extern int                              udpv6_init(void);
+extern void                             udpv6_exit(void);
+extern int                              udplitev6_init(void);
+extern void                             udplitev6_exit(void);
+extern int                              tcpv6_init(void);
+extern void                             tcpv6_exit(void);
 
 extern int                              udpv6_connect(struct sock *sk,
                                                       struct sockaddr *uaddr,