diff options
Diffstat (limited to 'drivers/base/module.c')
| -rw-r--r-- | drivers/base/module.c | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/drivers/base/module.c b/drivers/base/module.c index a1b55da07127..218aaa096455 100644 --- a/drivers/base/module.c +++ b/drivers/base/module.c @@ -9,7 +9,7 @@ #include <linux/string.h> #include "base.h" -static char *make_driver_name(struct device_driver *drv) +static char *make_driver_name(const struct device_driver *drv) { char *driver_name; @@ -30,7 +30,7 @@ static void module_create_drivers_dir(struct module_kobject *mk) mutex_unlock(&drivers_dir_mutex); } -int module_add_driver(struct module *mod, struct device_driver *drv) +int module_add_driver(struct module *mod, const struct device_driver *drv) { char *driver_name; struct module_kobject *mk = NULL; @@ -42,16 +42,13 @@ int module_add_driver(struct module *mod, struct device_driver *drv) if (mod) mk = &mod->mkobj; else if (drv->mod_name) { - struct kobject *mkobj; - - /* Lookup built-in module entry in /sys/modules */ - mkobj = kset_find_obj(module_kset, drv->mod_name); - if (mkobj) { - mk = container_of(mkobj, struct module_kobject, kobj); + /* Lookup or create built-in module entry in /sys/modules */ + mk = lookup_or_create_module_kobject(drv->mod_name); + if (mk) { /* remember our module structure */ drv->p->mkobj = mk; - /* kset_find_obj took a reference */ - kobject_put(mkobj); + /* lookup_or_create_module_kobject took a reference */ + kobject_put(&mk->kobj); } } @@ -65,31 +62,35 @@ int module_add_driver(struct module *mod, struct device_driver *drv) driver_name = make_driver_name(drv); if (!driver_name) { ret = -ENOMEM; - goto out; + goto out_remove_kobj; } module_create_drivers_dir(mk); if (!mk->drivers_dir) { ret = -EINVAL; - goto out; + goto out_free_driver_name; } ret = sysfs_create_link(mk->drivers_dir, &drv->p->kobj, driver_name); if (ret) - goto out; + goto out_remove_drivers_dir; kfree(driver_name); return 0; -out: - sysfs_remove_link(&drv->p->kobj, "module"); + +out_remove_drivers_dir: sysfs_remove_link(mk->drivers_dir, driver_name); + +out_free_driver_name: kfree(driver_name); +out_remove_kobj: + sysfs_remove_link(&drv->p->kobj, "module"); return ret; } -void module_remove_driver(struct device_driver *drv) +void module_remove_driver(const struct device_driver *drv) { struct module_kobject *mk = NULL; char *driver_name; |
