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d4bc0a264f
The overflow/underflow conditions in pata_macio_qc_prep() should never happen. But if they do there's no need to kill the system entirely, a WARN and failing the IO request should be sufficient and might allow the system to keep running. Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Damien Le Moal <dlemoal@kernel.org>