Re: BUG: 'Unknown symbol in module' happens after reloading ehci-hcd module
From: Ming Lei
Date: Wed Jul 28 2010 - 03:33:36 EST
2010/7/28 Ming Lei <tom.leiming@xxxxxxxxx>:
> Hi,
>
> 'Unknown symbol in module' happens after the actions below:
>
> rmmod ehci-hcd
> modprobe ehci-hcd
>
The issue is caused by returning failure of debugfs_create_dir, and
which may be fixed by replacing debugfs_remove with
debugfs_remove_recursive in ehci_hcd_cleanup.
Why does insmod show 'Unknown symbol in module' when module .init
return -ENOENT? The message does make us confused.
--
Lei Ming
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