[PATCHv2] Some coverity fixes

[Anoop C S]

On Mon, 2015-08-03 at 10:16 +0200, Stefan Metzmacher wrote:
> Hi Anoop,
> 
> > Reviews are welcome.
> 
> Can you please tabs instead of whitespaces?
> 

I have changed white spaces to tabs. Please see the updated version
attached along with this message.

> The change to uwrap_thread_child() seems to be wrong:
> uwrap_thread_prepare() takes the locks,
> while uwrap_thread_parent() and uwrap_thread_child()
> unlock.
> 

Thanks. So removing the same from attached patches.

--Anoop C S.

> The other patches look good to me Reviewed-by: me
> 
> metze
> 
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