src/sys/dev/disk/ata/ata-dma.c - diff

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version 1.20, 2004/03/09 21:39:59	version 1.21, 2004/03/29 16:22:23
Line 73 ata_dmaalloc(struct ata_device *atadev,	Line 73 ata_dmaalloc(struct ata_device *atadev,
return(0);	return(0);

KKASSERT(ch->dma_mpipe.max_count != 0);	KKASSERT(ch->dma_mpipe.max_count != 0);
atadev->dmastate.dmatab = mpipe_alloc(&ch->dma_mpipe, flags);	if (flags & M_RNOWAIT)
KKASSERT(((uintptr_t)atadev->dmastate.dmatab & PAGE_MASK) == 0);	atadev->dmastate.dmatab = mpipe_alloc_nowait(&ch->dma_mpipe);
	else
	atadev->dmastate.dmatab = mpipe_alloc_waitok(&ch->dma_mpipe);

if (atadev->dmastate.dmatab != NULL)	if (atadev->dmastate.dmatab != NULL) {
	KKASSERT(((uintptr_t)atadev->dmastate.dmatab & PAGE_MASK) == 0);
return(0);	return(0);
	}
return(ENOBUFS);	return(ENOBUFS);
}	}