On Mon, 26 Aug 2013 22:33:10 +0000, Nathan Hjelm said:

>Hmm, the conclusion is wrong. If ret > -1 the cached_device is always
>not NULL. I should probably change:
>
>if (ret < 0 || (cached_device && !cached_device->can_enumerate)) {
>
>to:
>
>if (ret < 0 || !cached_device->can_enumerate) {
>
>to reflect this.

That change would silence the warning, and is IMHO an appropriate fix if you're 
100% sure that 'cached_device' can indeed never be null when ret >= 0.

I've stared at the code for a couple of seconds, and am not fully convinced 
myself.  After all, the very first thing darwin_get_cached_device() does is:
  ret = 0;
  *cached_out = NULL;

If those initial conditions are not changed (in some freaky branch) then the 
quoted checks above are not equivalent.  But I trust you know the code well!

Cheers,

-- 
____________________________________________________________
Sean McBride, B. Eng                 s...@rogue-research.com
Rogue Research                        www.rogue-research.com 
Mac Software Developer              Montréal, Québec, Canada



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