diff options
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/libata-scsi.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c index 2007b4b6e1b..3ce7c198ff0 100644 --- a/drivers/scsi/libata-scsi.c +++ b/drivers/scsi/libata-scsi.c @@ -1921,7 +1921,7 @@ unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf, return 0; dpofua = 0; - if (ata_dev_supports_fua(args->id) && dev->flags & ATA_DFLAG_LBA48 && + if (ata_dev_supports_fua(args->id) && (dev->flags & ATA_DFLAG_LBA48) && (!(dev->flags & ATA_DFLAG_PIO) || dev->multi_count)) dpofua = 1 << 4; @@ -2408,9 +2408,14 @@ ata_scsi_pass_thru(struct ata_queued_cmd *qc, const u8 *scsicmd) { struct ata_taskfile *tf = &(qc->tf); struct scsi_cmnd *cmd = qc->scsicmd; + struct ata_device *dev = qc->dev; if ((tf->protocol = ata_scsi_map_proto(scsicmd[1])) == ATA_PROT_UNKNOWN) goto invalid_fld; + + /* We may not issue DMA commands if no DMA mode is set */ + if (tf->protocol == ATA_PROT_DMA && dev->dma_mode == 0) + goto invalid_fld; if (scsicmd[1] & 0xe0) /* PIO multi not supported yet */ |