linux-kernel - Re: kobject_add failed with -EEXIST

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Message-ID: <20061120182312.GA16006@APFDCB5C>
Date:	Tue, 21 Nov 2006 03:23:12 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	Jiri Slaby <jirislaby@...il.com>
Cc:	Linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>
Subject: Re: kobject_add failed with -EEXIST

On Mon, Nov 20, 2006 at 06:14:56PM +0100, Jiri Slaby wrote:
> Hi!
> 
> Does anybody have some clue, what's wrong with the attached module?
> Kernel complains when the module is insmoded second time (DRIVER_DEBUG enabled):

Could you try this patch? I also had similar problem.


---
 drivers/base/class.c |    2 ++
 1 file changed, 2 insertions(+)

Index: work-fault-inject/drivers/base/class.c
===================================================================
--- work-fault-inject.orig/drivers/base/class.c
+++ work-fault-inject/drivers/base/class.c
@@ -163,6 +163,8 @@ int class_register(struct class * cls)
 void class_unregister(struct class * cls)
 {
 	pr_debug("device class '%s': unregistering\n", cls->name);
+	if (cls->virtual_dir)
+		kobject_unregister(cls->virtual_dir);
 	remove_class_attrs(cls);
 	subsystem_unregister(&cls->subsys);
 }
-
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