[ARM] 4650/1: AT91: New-style init of I2C, support for i2c-gpio

[linux-2.6-omap-h63xx.git] / lib / kobject.c

diff --git a/lib/kobject.c b/lib/kobject.c
index fc6db6b4bfc59f069ddd89c7d1e9f19bdfb7e5a1..a7e3bf4d3c70317273b63003dc18f714a546ac36 100644 (file)
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -2,6 +2,8 @@
  * kobject.c - library routines for handling generic kernel objects
  *
  * Copyright (c) 2002-2003 Patrick Mochel <mochel@osdl.org>
+ * Copyright (c) 2006-2007 Greg Kroah-Hartman <greg@kroah.com>
+ * Copyright (c) 2006-2007 Novell Inc.
  *
  * This file is released under the GPLv2.
  *
@@ -306,6 +308,19 @@ int kobject_rename(struct kobject * kobj, const char *new_name)
        if (!kobj->parent)
                return -EINVAL;
 
+       /* see if this name is already in use */
+       if (kobj->kset) {
+               struct kobject *temp_kobj;
+               temp_kobj = kset_find_obj(kobj->kset, new_name);
+               if (temp_kobj) {
+                       printk(KERN_WARNING "kobject '%s' can not be renamed "
+                              "to '%s' as '%s' is already in existance.\n",
+                              kobject_name(kobj), new_name, new_name);
+                       kobject_put(temp_kobj);
+                       return -EINVAL;
+               }
+       }
+
        devpath = kobject_get_path(kobj, GFP_KERNEL);
        if (!devpath) {
                error = -ENOMEM;
@@ -617,11 +632,6 @@ struct kobject * kset_find_obj(struct kset * kset, const char * name)
        return ret;
 }
 
-void subsystem_init(struct kset *s)
-{
-       kset_init(s);
-}
-
 int subsystem_register(struct kset *s)
 {
        return kset_register(s);