diff options
| author | Greg Kroah-Hartman <gregkh@suse.de> | 2007-01-15 11:50:02 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-02-07 10:37:12 -0800 |
| commit | fe480a2675ed236af396597d9f05245c7bbd0149 (patch) | |
| tree | 1320b12250fd7ff8b642cc205587c7d0cbf6d9bb | |
| parent | f30c53a873d0d227493197064b8886af2d57bbd6 (diff) | |
Modules: only add drivers/ direcory if needed
This changes the module core to only create the drivers/ directory if we
are going to put something in it.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | kernel/module.c | 20 | ||||
| -rw-r--r-- | kernel/params.c | 1 |
2 files changed, 11 insertions, 10 deletions
diff --git a/kernel/module.c b/kernel/module.c index 0f4489af3e2..9de4209f6a6 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -1131,12 +1131,6 @@ static int mod_sysfs_setup(struct module *mod, if (err) goto out; - mod->mkobj.drivers_dir = kobject_add_dir(&mod->mkobj.kobj, "drivers"); - if (!mod->mkobj.drivers_dir) { - err = -ENOMEM; - goto out_unreg; - } - err = module_param_sysfs_setup(mod, kparam, num_params); if (err) goto out_unreg_drivers; @@ -1151,8 +1145,6 @@ static int mod_sysfs_setup(struct module *mod, out_unreg_param: module_param_sysfs_remove(mod); out_unreg_drivers: - kobject_unregister(mod->mkobj.drivers_dir); -out_unreg: kobject_del(&mod->mkobj.kobj); kobject_put(&mod->mkobj.kobj); out: @@ -1163,7 +1155,8 @@ static void mod_kobject_remove(struct module *mod) { module_remove_modinfo_attrs(mod); module_param_sysfs_remove(mod); - kobject_unregister(mod->mkobj.drivers_dir); + if (mod->mkobj.drivers_dir) + kobject_unregister(mod->mkobj.drivers_dir); kobject_unregister(&mod->mkobj.kobj); } @@ -2340,6 +2333,14 @@ static char *make_driver_name(struct device_driver *drv) return driver_name; } +static void module_create_drivers_dir(struct module_kobject *mk) +{ + if (!mk || mk->drivers_dir) + return; + + mk->drivers_dir = kobject_add_dir(&mk->kobj, "drivers"); +} + void module_add_driver(struct module *mod, struct device_driver *drv) { char *driver_name; @@ -2367,6 +2368,7 @@ void module_add_driver(struct module *mod, struct device_driver *drv) no_warn = sysfs_create_link(&drv->kobj, &mk->kobj, "module"); driver_name = make_driver_name(drv); if (driver_name) { + module_create_drivers_dir(mk); no_warn = sysfs_create_link(mk->drivers_dir, &drv->kobj, driver_name); kfree(driver_name); diff --git a/kernel/params.c b/kernel/params.c index 737b7c5e93a..cbaac85942d 100644 --- a/kernel/params.c +++ b/kernel/params.c @@ -565,7 +565,6 @@ static void __init kernel_param_sysfs_setup(const char *name, ret = kobject_add(&mk->kobj); BUG_ON(ret < 0); param_sysfs_setup(mk, kparam, num_params, name_skip); - mk->drivers_dir = kobject_add_dir(&mk->kobj, "drivers"); kobject_uevent(&mk->kobj, KOBJ_ADD); } |