Re: [PATCH]: Fix IDE host_flags regression.

[Alan Cox]

> - IDE_HFLAG_ERROR_STOPS_FIFO (the error path of pdc202xx_{old,new}) 

I've been playing with this a bit in libata - it seems the pdc202xx is a
bit more complicated. An error doesn't stop the FIFO, a reset does.

The problem thus seems to be triggered ultimately by the fact we call the
timeout method before doing a FIFO drain in some cases, and also that old
IDE tries to use PIO to flush a DRQ when the failing taskfile is a DMA
operation not PIO..

Alan

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