Re: [PATCH] kobject: fix double kobject_put in kobject_unregister()
From: Russell King
Date: Wed Nov 10 2004 - 17:31:51 EST
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:
register (refcount >= 2 after this completes)
will automatically free the object once the last user has gone.
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@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/