libata: force PIO on IOMEGA ZIP 250 ATAPI

IOMEGA ZIP 250 ATAPI claims MWDMA0 support but fails SETXFERMODE if
asked to configure itself to MWDMA0.  Force PIO.

This fixes bugzilla bug#8497.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Calvin Walton <calvin.walton@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 4b3c45e91c76622f42569874345cfcee1bfc04d2..76aa94f55af9847f5e11f133337718191204e722 100644 (file)
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3771,6 +3771,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
        { "_NEC DV5800A",       NULL,           ATA_HORKAGE_NODMA },
        { "SAMSUNG CD-ROM SN-124","N001",       ATA_HORKAGE_NODMA },
        { "Seagate STT20000A", NULL,            ATA_HORKAGE_NODMA },
+       { "IOMEGA  ZIP 250       ATAPI", NULL,  ATA_HORKAGE_NODMA }, /* temporary fix */
 
        /* Weird ATAPI devices */
        { "TORiSAN DVD-ROM DRD-N216", NULL,     ATA_HORKAGE_MAX_SEC_128 |