Messages in this thread | | | Date | Wed, 10 Nov 2004 22:30:16 +0000 | From | Russell King <> | Subject | Re: [PATCH] kobject: fix double kobject_put in kobject_unregister() |
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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 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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