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can: af_can: can_pernet_exit(): no need to iterate over and cleanup registered CAN devices

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The networking core takes care and unregisters every network device in
a namespace before calling the can_pernet_exit() hook. This patch
removes the unneeded cleanup.

Acked-by: Oliver Hartkopp <[email protected]>
Suggested-by: Kirill Tkhai <[email protected]>
Signed-off-by: Oleksij Rempel <[email protected]>
Signed-off-by: Marc Kleine-Budde <[email protected]>
This commit is contained in:
Marc Kleine-Budde 2018-10-08 09:02:37 +02:00
commit 3f15035606
1 changed files with 0 additions and 15 deletions
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15
net/can/af_can.c
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@ -866,27 +866,12 @@ static int can_pernet_init(struct net *net)
static void can_pernet_exit(struct net *net)
{
struct net_device *dev;
if (IS_ENABLED(CONFIG_PROC_FS)) {
can_remove_proc(net);
if (stats_timer)
del_timer_sync(&net->can.stattimer);
}
/* remove created dev_rcv_lists from still registered CAN devices */
rcu_read_lock();
for_each_netdev_rcu(net, dev) {
if (dev->type == ARPHRD_CAN && dev->ml_priv) {
struct can_dev_rcv_lists *dev_rcv_lists = dev->ml_priv;
BUG_ON(dev_rcv_lists->entries);
kfree(dev_rcv_lists);
dev->ml_priv = NULL;
}
}
rcu_read_unlock();
kfree(net->can.rx_alldev_list);
kfree(net->can.pkg_stats);
kfree(net->can.rcv_lists_stats);