Fix small race in 44x tlbie function

[Benjamin Herrenschmidt]

On Thu, 2007-08-09 at 07:04 -0500, Josh Boyer wrote:
> 
> > We don't have critical wired to anything, I don't expect watchdog
> to  
> > cause another fault.. so just wondering.
> 
> We being who?  I'm slightly confused here. 

I think Kumar doesn't know that we are talking about the BG kernel which
has more things "wired" to CRIT than what is upstream at the moment :-)

Ben.