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