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@@ -308,6 +308,19 @@ int kobject_rename(struct kobject * kobj, const char *new_name)
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if (!kobj->parent)
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return -EINVAL;
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+ /* see if this name is already in use */
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+ if (kobj->kset) {
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+ struct kobject *temp_kobj;
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+ temp_kobj = kset_find_obj(kobj->kset, new_name);
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+ if (temp_kobj) {
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+ printk(KERN_WARNING "kobject '%s' can not be renamed "
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+ "to '%s' as '%s' is already in existance.\n",
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+ kobject_name(kobj), new_name, new_name);
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+ kobject_put(temp_kobj);
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+ return -EINVAL;
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+ }
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+ }
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+
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devpath = kobject_get_path(kobj, GFP_KERNEL);
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if (!devpath) {
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error = -ENOMEM;
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