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authorPeter Tiedemann2007-11-29 17:36:27 +0100
committerJeff Garzik2007-12-01 16:32:28 -0500
commit1c1478859017452a1179dbbdf7b9eb5b48438746 (patch)
tree45bde61bfb4f496d5d899735939c327608e79274 /drivers/s390/net
parent9f74ffdebf3f81cb69e6c90026c6cff89e57c262 (diff)
ctc: make use of alloc_netdev()
Currently ctc-device initialization is broken (kernel bug in ctc_new_device). The new network namespace code reveals a deficiency of the ctc driver. It should make use of alloc_netdev() as described in Documentation/networking/netdevices.txt. Signed-off-by: Peter Tiedemann <ptiedem@de.ibm.com> Signed-off-by: Ursula Braun <braunu@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/s390/net')
-rw-r--r--drivers/s390/net/ctcmain.c45
1 files changed, 16 insertions, 29 deletions
diff --git a/drivers/s390/net/ctcmain.c b/drivers/s390/net/ctcmain.c
index 6bf3ebbe985a..b3b6f654365c 100644
--- a/drivers/s390/net/ctcmain.c
+++ b/drivers/s390/net/ctcmain.c
@@ -2782,35 +2782,14 @@ ctc_probe_device(struct ccwgroup_device *cgdev)
}
/**
- * Initialize everything of the net device except the name and the
- * channel structs.
+ * Device setup function called by alloc_netdev().
+ *
+ * @param dev Device to be setup.
*/
-static struct net_device *
-ctc_init_netdevice(struct net_device * dev, int alloc_device,
- struct ctc_priv *privptr)
+void ctc_init_netdevice(struct net_device * dev)
{
- if (!privptr)
- return NULL;
-
DBF_TEXT(setup, 3, __FUNCTION__);
- if (alloc_device) {
- dev = kzalloc(sizeof(struct net_device), GFP_KERNEL);
- if (!dev)
- return NULL;
- }
-
- dev->priv = privptr;
- privptr->fsm = init_fsm("ctcdev", dev_state_names,
- dev_event_names, CTC_NR_DEV_STATES, CTC_NR_DEV_EVENTS,
- dev_fsm, DEV_FSM_LEN, GFP_KERNEL);
- if (privptr->fsm == NULL) {
- if (alloc_device)
- kfree(dev);
- return NULL;
- }
- fsm_newstate(privptr->fsm, DEV_STATE_STOPPED);
- fsm_settimer(privptr->fsm, &privptr->restart_timer);
if (dev->mtu == 0)
dev->mtu = CTC_BUFSIZE_DEFAULT - LL_HEADER_LENGTH - 2;
dev->hard_start_xmit = ctc_tx;
@@ -2823,7 +2802,7 @@ ctc_init_netdevice(struct net_device * dev, int alloc_device,
dev->type = ARPHRD_SLIP;
dev->tx_queue_len = 100;
dev->flags = IFF_POINTOPOINT | IFF_NOARP;
- return dev;
+ SET_MODULE_OWNER(dev);
}
@@ -2879,14 +2858,22 @@ ctc_new_device(struct ccwgroup_device *cgdev)
"ccw_device_set_online (cdev[1]) failed with ret = %d\n", ret);
}
- dev = ctc_init_netdevice(NULL, 1, privptr);
-
+ dev = alloc_netdev(0, "ctc%d", ctc_init_netdevice);
if (!dev) {
ctc_pr_warn("ctc_init_netdevice failed\n");
goto out;
}
+ dev->priv = privptr;
- strlcpy(dev->name, "ctc%d", IFNAMSIZ);
+ privptr->fsm = init_fsm("ctcdev", dev_state_names,
+ dev_event_names, CTC_NR_DEV_STATES, CTC_NR_DEV_EVENTS,
+ dev_fsm, DEV_FSM_LEN, GFP_KERNEL);
+ if (privptr->fsm == NULL) {
+ free_netdev(dev);
+ goto out;
+ }
+ fsm_newstate(privptr->fsm, DEV_STATE_STOPPED);
+ fsm_settimer(privptr->fsm, &privptr->restart_timer);
for (direction = READ; direction <= WRITE; direction++) {
privptr->channel[direction] =