--- linux/drivers/scsi/libata-core.c	2005-06-23 15:57:16.000000000 +0800
+++ linux-intr/drivers/scsi/libata-core.c	2005-06-23 16:06:48.000000000 +0800
@@ -3506,7 +3506,6 @@
 
 	case ATA_PROT_DMA:
 	case ATA_PROT_ATAPI_DMA:
-	case ATA_PROT_ATAPI:
 		/* check status of DMA engine */
 		host_stat = ap->ops->bmdma_status(ap);
 		VPRINTK("ata%u: host_stat 0x%X\n", ap->id, host_stat);