[Bug 769] Minor boundary bug in rtems_io_register_driver

[bugzilla-daemon at rtems.org]

http://www.rtems.org/bugzilla/show_bug.cgi?id=769





--- Comment #4 from Chris Johns <chrisj at rtems.org>  2008-08-05 19:56:45 ---
The code searches from the top to keep away from drivers that statically
allocate a number. If a driver that uses 0 it is asking for the a number to be
allocated and if it gets 1 then a static allocated driver registers, ie before
this code was present in RTEMS, making a request for slot 1 it will get an
error.

The 0 slot could be used if needed. I wonder if I left it out because 0 means
allocate me a slot. I suspect not as 0 only means this on the way in not out.


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