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Diffstat (limited to 'kernel/module.c')
-rw-r--r--kernel/module.c30
1 files changed, 20 insertions, 10 deletions
diff --git a/kernel/module.c b/kernel/module.c
index 3803449ca219..f546d574f436 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1666,31 +1666,36 @@ static inline void remove_notes_attrs(struct module *mod)
}
#endif /* CONFIG_KALLSYMS */
-static void add_usage_links(struct module *mod)
+static void del_usage_links(struct module *mod)
{
#ifdef CONFIG_MODULE_UNLOAD
struct module_use *use;
- int nowarn;
mutex_lock(&module_mutex);
- list_for_each_entry(use, &mod->target_list, target_list) {
- nowarn = sysfs_create_link(use->target->holders_dir,
- &mod->mkobj.kobj, mod->name);
- }
+ list_for_each_entry(use, &mod->target_list, target_list)
+ sysfs_remove_link(use->target->holders_dir, mod->name);
mutex_unlock(&module_mutex);
#endif
}
-static void del_usage_links(struct module *mod)
+static int add_usage_links(struct module *mod)
{
+ int ret = 0;
#ifdef CONFIG_MODULE_UNLOAD
struct module_use *use;
mutex_lock(&module_mutex);
- list_for_each_entry(use, &mod->target_list, target_list)
- sysfs_remove_link(use->target->holders_dir, mod->name);
+ list_for_each_entry(use, &mod->target_list, target_list) {
+ ret = sysfs_create_link(use->target->holders_dir,
+ &mod->mkobj.kobj, mod->name);
+ if (ret)
+ break;
+ }
mutex_unlock(&module_mutex);
+ if (ret)
+ del_usage_links(mod);
#endif
+ return ret;
}
static int module_add_modinfo_attrs(struct module *mod)
@@ -1801,13 +1806,18 @@ static int mod_sysfs_setup(struct module *mod,
if (err)
goto out_unreg_param;
- add_usage_links(mod);
+ err = add_usage_links(mod);
+ if (err)
+ goto out_unreg_modinfo_attrs;
+
add_sect_attrs(mod, info);
add_notes_attrs(mod, info);
kobject_uevent(&mod->mkobj.kobj, KOBJ_ADD);
return 0;
+out_unreg_modinfo_attrs:
+ module_remove_modinfo_attrs(mod);
out_unreg_param:
module_param_sysfs_remove(mod);
out_unreg_holders: