add a common removing and unregistering exit function for interfaces when manager_free and manager_destroy function is called

[Denis Kenzior]

Hi Minjun,

On Monday 01 June 2009 20:18:23 Li, Minjun wrote:
> Hi Folks,
> Because I found that manager_destroy function is lack of some exit function
> calls comparing to manager_free function, I add a common removing and
> unregistering exit function for interfaces when manager_free and
> manager_destroy function is called.

Please use proper coding style when submitting patches.  This means tabs 
instead of spaces, and proper spacing, e.g. 'if () {'  The functions should be 
named appropriately, 'foo_free' just won't work.

Also, only include patches that are specific to the fix, things like mode change 
are extraneous.   And include a proper commit message.

>
> Best Regards,
> Minjun

Regards,
-Denis