diff options
Diffstat (limited to 'lib/kobject.c')
-rw-r--r-- | lib/kobject.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/lib/kobject.c b/lib/kobject.c index 7dd5c0e9d996..744a4b102c7f 100644 --- a/lib/kobject.c +++ b/lib/kobject.c | |||
@@ -311,6 +311,56 @@ int kobject_rename(struct kobject * kobj, const char *new_name) | |||
311 | } | 311 | } |
312 | 312 | ||
313 | /** | 313 | /** |
314 | * kobject_move - move object to another parent | ||
315 | * @kobj: object in question. | ||
316 | * @new_parent: object's new parent | ||
317 | */ | ||
318 | |||
319 | int kobject_move(struct kobject *kobj, struct kobject *new_parent) | ||
320 | { | ||
321 | int error; | ||
322 | struct kobject *old_parent; | ||
323 | const char *devpath = NULL; | ||
324 | char *devpath_string = NULL; | ||
325 | char *envp[2]; | ||
326 | |||
327 | kobj = kobject_get(kobj); | ||
328 | if (!kobj) | ||
329 | return -EINVAL; | ||
330 | new_parent = kobject_get(new_parent); | ||
331 | if (!new_parent) { | ||
332 | error = -EINVAL; | ||
333 | goto out; | ||
334 | } | ||
335 | /* old object path */ | ||
336 | devpath = kobject_get_path(kobj, GFP_KERNEL); | ||
337 | if (!devpath) { | ||
338 | error = -ENOMEM; | ||
339 | goto out; | ||
340 | } | ||
341 | devpath_string = kmalloc(strlen(devpath) + 15, GFP_KERNEL); | ||
342 | if (!devpath_string) { | ||
343 | error = -ENOMEM; | ||
344 | goto out; | ||
345 | } | ||
346 | sprintf(devpath_string, "DEVPATH_OLD=%s", devpath); | ||
347 | envp[0] = devpath_string; | ||
348 | envp[1] = NULL; | ||
349 | error = sysfs_move_dir(kobj, new_parent); | ||
350 | if (error) | ||
351 | goto out; | ||
352 | old_parent = kobj->parent; | ||
353 | kobj->parent = new_parent; | ||
354 | kobject_put(old_parent); | ||
355 | kobject_uevent_env(kobj, KOBJ_MOVE, envp); | ||
356 | out: | ||
357 | kobject_put(kobj); | ||
358 | kfree(devpath_string); | ||
359 | kfree(devpath); | ||
360 | return error; | ||
361 | } | ||
362 | |||
363 | /** | ||
314 | * kobject_del - unlink kobject from hierarchy. | 364 | * kobject_del - unlink kobject from hierarchy. |
315 | * @kobj: object. | 365 | * @kobj: object. |
316 | */ | 366 | */ |