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Date:	Sun, 05 Jan 2014 17:43:56 +0100
From:	Bart Van Assche <>
To:	Mikulas Patocka <>,
	Jeff Mahoney <>,
	Greg Kroah-Hartman <>,,
	device-mapper development <>
Subject: Re: [dm-devel] [PATCH] kobject: provide kobject_put_wait to fix module
 unload race

On 01/04/14 19:06, Mikulas Patocka wrote:
> -	if (t && !t->release)
> -		pr_debug("kobject: '%s' (%p): does not have a release() "
> -			 "function, it is broken and must be fixed.\n",
> -			 kobject_name(kobj), kobj);
> -

Has it been considered to issue a warning if no release function has
been defined and free_completion == NULL instead of removing the above
debug message entirely ? I think even with this patch applied it is
still wrong to invoke kobject_put() on an object without defining a
release function.



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