diff options
Diffstat (limited to 'net/core/fib_notifier.c')
| -rw-r--r-- | net/core/fib_notifier.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/net/core/fib_notifier.c b/net/core/fib_notifier.c index 292aab83702f..4fc202dbdfb6 100644 --- a/net/core/fib_notifier.c +++ b/net/core/fib_notifier.c @@ -2,6 +2,7 @@ #include <linux/notifier.h> #include <linux/rcupdate.h> #include <linux/kernel.h> +#include <linux/module.h> #include <linux/init.h> #include <net/net_namespace.h> #include <net/fib_notifier.h> @@ -33,8 +34,12 @@ static unsigned int fib_seq_sum(void) rtnl_lock(); for_each_net(net) { - list_for_each_entry(ops, &net->fib_notifier_ops, list) + list_for_each_entry(ops, &net->fib_notifier_ops, list) { + if (!try_module_get(ops->owner)) + continue; fib_seq += ops->fib_seq_read(net); + module_put(ops->owner); + } } rtnl_unlock(); @@ -46,8 +51,12 @@ static int fib_net_dump(struct net *net, struct notifier_block *nb) struct fib_notifier_ops *ops; list_for_each_entry_rcu(ops, &net->fib_notifier_ops, list) { - int err = ops->fib_dump(net, nb); + int err; + if (!try_module_get(ops->owner)) + continue; + err = ops->fib_dump(net, nb); + module_put(ops->owner); if (err) return err; } |