[PATCH] Fix ODEV_ATTRIB_DRIVER overlapping with ODEV_ATTRIB_FD

[Keith Packard]

Hans de Goede <hdegoede at redhat.com> writes:

> Looks like the value of ODEV_ATTRIB_DRIVER was not updated when the patch
> adding it got rebased on top of a newer server version.

This points out some weaknesses in the config_odev API; it shouldn't be
possible to crash the server in this way. Here's a patch which tries to
make this API robust against future errors and emit error messages that
should help track down incorrect usage.

I am going to insist that the API be made robust (either with this patch
or something which has the desired effect; I haven't done more than
compile this one) while the existing bug is still present so that we can
verify that the code now survives this abuse without crashing. After
that works, I can merge in both that and the actual fix.

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-- 
keith.packard at intel.com
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