On Fri, Feb 15, 2008 at 10:54:59PM -0800, Andrew Morton wrote:
> 
> drivers/char/mmtimer.c: In function `sgi_timer_del':
> drivers/char/mmtimer.c:607: warning: 't' might be used uninitialized in this 
> function
> 
> Are you sure this is absolutely always a false positive?   If so,
> we can shut it up with uninitialized_var().

Only 2 ways 't' wouldn't be set at all:
  - If 'n' was NULL right away at line 613.  We then exit immediatly at line 
626.

  - If we never found 't->timer == timr', in which case we made it to the end 
of a branch, and once again 'n' would be NULL and would exit right away at line 
626.

So yes, I'm in agreement with your patch to shut it up with uninitialized_var().
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