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[DCCP] CCID: Allow ccid_{init,exit} to be NULL 

Testing if the ccid being instantiated has these methods in
ccid_init().

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arnaldo Carvalho de Melo 2006-03-20 17:20:23 -08:00 committed by David S. Miller
parent 02bcf28c82
commit 411447019a
2 changed files with 1 additions and 15 deletions
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5
net/dccp/ccid.c
View File

@ -59,9 +59,6 @@ int ccid_register(struct ccid *ccid)
{
int err;
if (ccid->ccid_init == NULL)
return -1;
ccids_write_lock();
err = -EEXIST;
if (ccids[ccid->ccid_id] == NULL) {
@ -106,7 +103,7 @@ struct ccid *ccid_init(unsigned char id, struct sock *sk)
if (!try_module_get(ccid->ccid_owner))
goto out_err;
if (ccid->ccid_init(sk) != 0)
if (ccid->ccid_init != NULL && ccid->ccid_init(sk) != 0)
goto out_module_put;
out:
ccids_read_unlock();

11
net/dccp/ccids/ccid3.c
View File

@ -76,15 +76,6 @@ static struct dccp_tx_hist *ccid3_tx_hist;
static struct dccp_rx_hist *ccid3_rx_hist;
static struct dccp_li_hist *ccid3_li_hist;
static int ccid3_init(struct sock *sk)
{
return 0;
}
static void ccid3_exit(struct sock *sk)
{
}
/* TFRC sender states */
enum ccid3_hc_tx_states {
TFRC_SSTATE_NO_SENT = 1,
@ -1182,8 +1173,6 @@ static struct ccid ccid3 = {
.ccid_id = 3,
.ccid_name = "ccid3",
.ccid_owner = THIS_MODULE,
.ccid_init = ccid3_init,
.ccid_exit = ccid3_exit,
.ccid_hc_tx_init = ccid3_hc_tx_init,
.ccid_hc_tx_exit = ccid3_hc_tx_exit,
.ccid_hc_tx_send_packet = ccid3_hc_tx_send_packet,