> Really, what I think you want to do in these cases is
> return an error, then have the driver that called the isa dma code
> either disable the device, or try a different DRQ (if that makes
> sense).
I'm pretty sure this particular bug is fixed in current; the
probe checks that the drqs are free before attempting any dmamap
operations.  But I guess that fix didn't make it into 1.3.2.  Mea culpa.

        -- Lennart