diff options
Diffstat (limited to 'drivers/ata/libata-core.c')
| -rw-r--r-- | drivers/ata/libata-core.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 82af7011f2d..622350d9b2e 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -4024,6 +4024,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = { /* Weird ATAPI devices */ { "TORiSAN DVD-ROM DRD-N216", NULL, ATA_HORKAGE_MAX_SEC_128 }, + { "QUANTUM DAT DAT72-000", NULL, ATA_HORKAGE_ATAPI_MOD16_DMA }, /* Devices we expect to fail diagnostics */ @@ -4444,7 +4445,8 @@ int atapi_check_dma(struct ata_queued_cmd *qc) /* Don't allow DMA if it isn't multiple of 16 bytes. Quite a * few ATAPI devices choke on such DMA requests. */ - if (unlikely(qc->nbytes & 15)) + if (!(qc->dev->horkage & ATA_HORKAGE_ATAPI_MOD16_DMA) && + unlikely(qc->nbytes & 15)) return 1; if (ap->ops->check_atapi_dma) @@ -5934,7 +5936,7 @@ static void ata_port_detach(struct ata_port *ap) * to us. Restore SControl and disable all existing devices. */ __ata_port_for_each_link(link, ap) { - sata_scr_write(link, SCR_CONTROL, link->saved_scontrol); + sata_scr_write(link, SCR_CONTROL, link->saved_scontrol & 0xff0); ata_link_for_each_dev(dev, link) ata_dev_disable(dev); } |