Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

[firefly-linux-kernel-4.4.55.git] / kernel / module.c

diff --git a/kernel/module.c b/kernel/module.c
index c6756d1c6d73a5c5a3743174a907fbc802e2fbce..dc582749fa1386db25af23929db4fc20b6c7acce 100644 (file)
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -136,6 +136,7 @@ static int param_set_bool_enable_only(const char *val,
 }
 
 static const struct kernel_param_ops param_ops_bool_enable_only = {
+       .flags = KERNEL_PARAM_FL_NOARG,
        .set = param_set_bool_enable_only,
        .get = param_get_bool,
 };
@@ -603,7 +604,7 @@ static void setup_modinfo_##field(struct module *mod, const char *s)  \
 static ssize_t show_modinfo_##field(struct module_attribute *mattr,   \
                        struct module_kobject *mk, char *buffer)      \
 {                                                                     \
-       return sprintf(buffer, "%s\n", mk->mod->field);               \
+       return scnprintf(buffer, PAGE_SIZE, "%s\n", mk->mod->field);  \
 }                                                                     \
 static int modinfo_##field##_exists(struct module *mod)               \
 {                                                                     \
@@ -1611,6 +1612,14 @@ static void module_remove_modinfo_attrs(struct module *mod)
        kfree(mod->modinfo_attrs);
 }
 
+static void mod_kobject_put(struct module *mod)
+{
+       DECLARE_COMPLETION_ONSTACK(c);
+       mod->mkobj.kobj_completion = &c;
+       kobject_put(&mod->mkobj.kobj);
+       wait_for_completion(&c);
+}
+
 static int mod_sysfs_init(struct module *mod)
 {
        int err;
@@ -1638,7 +1647,7 @@ static int mod_sysfs_init(struct module *mod)
        err = kobject_init_and_add(&mod->mkobj.kobj, &module_ktype, NULL,
                                   "%s", mod->name);
        if (err)
-               kobject_put(&mod->mkobj.kobj);
+               mod_kobject_put(mod);
 
        /* delay uevent until full sysfs population */
 out:
@@ -1682,7 +1691,7 @@ out_unreg_param:
 out_unreg_holders:
        kobject_put(mod->holders_dir);
 out_unreg:
-       kobject_put(&mod->mkobj.kobj);
+       mod_kobject_put(mod);
 out:
        return err;
 }
@@ -1691,7 +1700,7 @@ static void mod_sysfs_fini(struct module *mod)
 {
        remove_notes_attrs(mod);
        remove_sect_attrs(mod);
-       kobject_put(&mod->mkobj.kobj);
+       mod_kobject_put(mod);
 }
 
 #else /* !CONFIG_SYSFS */