[Bug 1964] _Chain_Is_first/last overshoot

[bugzilla-daemon at rtems.org]

https://www.rtems.org/bugzilla/show_bug.cgi?id=1964

--- Comment #6 from Joel Sherrill <joel.sherrill at oarcorp.com> 2011-11-14 10:03:06 CST ---
(In reply to comment #5)
> (In reply to comment #4)
> > (In reply to comment #3)
> > > This bug may be present in older branches.
> > 
> > Yes and that's the only reason I want to commit this. I have test environments
> > for multiple branches set up.
> > 
> > One question on patch.. 
> > 
> >  return (the_node->previous->previous == NULL);
> > 
> > Should "the_node->previous" be checked for NULL before it is dereferenced?
> > 
> > Ditto for the other case.
> 
> Not a problem if the node is on a chain.

But if you pass in a permanent head...

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