*
* static void __exit exit_my_ematch(void)
* {
- * return tcf_em_unregister(&my_ops);
+ * tcf_em_unregister(&my_ops);
* }
*
* module_init(init_my_ematch);
*/
#include <linux/module.h>
+#include <linux/slab.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/errno.h>
*
* Returns -ENOENT if no matching ematch was found.
*/
-int tcf_em_unregister(struct tcf_ematch_ops *ops)
+void tcf_em_unregister(struct tcf_ematch_ops *ops)
{
- int err = 0;
- struct tcf_ematch_ops *e;
-
write_lock(&ematch_mod_lock);
- list_for_each_entry(e, &ematch_ops, link) {
- if (e == ops) {
- list_del(&e->link);
- goto out;
- }
- }
-
- err = -ENOENT;
-out:
+ list_del(&ops->link);
write_unlock(&ematch_mod_lock);
- return err;
}
EXPORT_SYMBOL(tcf_em_unregister);
if (em->ops == NULL) {
err = -ENOENT;
-#ifdef CONFIG_KMOD
+#ifdef CONFIG_MODULES
__rtnl_unlock();
request_module("ematch-kind-%u", em_hdr->kind);
rtnl_lock();
struct tcf_ematch_tree_hdr *tree_hdr;
struct tcf_ematch *em;
- if (!nla) {
- memset(tree, 0, sizeof(*tree));
+ memset(tree, 0, sizeof(*tree));
+ if (!nla)
return 0;
- }
err = nla_parse_nested(tb, TCA_EMATCH_TREE_MAX, nla, em_policy);
if (err < 0)
if (em->ops) {
if (em->ops->destroy)
em->ops->destroy(tp, em);
- else if (!tcf_em_is_simple(em) && em->data)
+ else if (!tcf_em_is_simple(em))
kfree((void *) em->data);
module_put(em->ops->owner);
}
tree->hdr.nmatches = 0;
kfree(tree->matches);
+ tree->matches = NULL;
}
EXPORT_SYMBOL(tcf_em_tree_destroy);
stack_overflow:
if (net_ratelimit())
- printk("Local stack overflow, increase NET_EMATCH_STACK\n");
+ printk(KERN_WARNING "tc ematch: local stack overflow,"
+ " increase NET_EMATCH_STACK\n");
return -1;
}
EXPORT_SYMBOL(__tcf_em_tree_match);