Re: [PATCH] kobject: fix double kobject_put in kobject_unregister()

[Russell King]

On Wed, Nov 10, 2004 at 02:19:23PM -0800, Keshavamurthy Anil S wrote:
> Hi Greg,
> 	
> This patch fixes the problem where in kobject resources were getting
> freed when those kobject were still in use due to double kobject_put()
> getting called in the kobject_unregister() code path.

Isn't it intended that, after an sysfs/kobject/device object is
unregistered that the thread doing the unregistering must not
dereference the memory associated with that object?

IOW, the sequence:

	allocate
	register	(refcount >= 2 after this completes)
	unregister

will automatically free the object once the last user has gone.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 PCMCIA      - http://pcmcia.arm.linux.org.uk/
                 2.6 Serial core
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