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

[Denis Kenzior]

Hi Minjun,

On Tuesday 02 June 2009 02:02:29 Li, Minjun wrote:
> Hi Folks,
> I regenerated the patch.
> Because I found that manager_destroy function is lack of some exit function
> calls comparing to manager_free function, I add a common exit function for
> interfaces when manager_free and manager_destroy function is called.
>

In interface_exit: Please remove if (at)  block, its pointless.

Please get rid of all mode changes, only submit changes to files that are 
relevant to the fix.

Get a proper commit message.  E.g. put the description in the email into the 
commit message.  

> Best Regards,
> Minjun

Regards,
-Denis