pata_pdc202xx_old: Fix crashes with ATAPI

[cascardo/linux.git] / drivers / ata / pata_pdc202xx_old.c

diff --git a/drivers/ata/pata_pdc202xx_old.c b/drivers/ata/pata_pdc202xx_old.c
index 8f28156..6c9689b 100644 (file)
--- a/drivers/ata/pata_pdc202xx_old.c
+++ b/drivers/ata/pata_pdc202xx_old.c
@@ -244,6 +244,24 @@ static int pdc2026x_port_start(struct ata_port *ap)
        return ata_sff_port_start(ap);
 }
 
+/**
+ *     pdc2026x_check_atapi_dma - Check whether ATAPI DMA can be supported for this command
+ *     @qc: Metadata associated with taskfile to check
+ *
+ *     Just say no - not supported on older Promise.
+ *
+ *     LOCKING:
+ *     None (inherited from caller).
+ *
+ *     RETURNS: 0 when ATAPI DMA can be used
+ *              1 otherwise
+ */
+
+static int pdc2026x_check_atapi_dma(struct ata_queued_cmd *qc)
+{
+       return 1;
+}
+
 static struct scsi_host_template pdc202xx_sht = {
        .module                 = THIS_MODULE,
        .name                   = DRV_NAME,
@@ -311,6 +329,7 @@ static struct ata_port_operations pdc2026x_port_ops = {
        .post_internal_cmd = ata_bmdma_post_internal_cmd,
        .cable_detect   = pdc2026x_cable_detect,
 
+       .check_atapi_dma= pdc2026x_check_atapi_dma,
        .bmdma_setup    = ata_bmdma_setup,
        .bmdma_start    = pdc2026x_bmdma_start,
        .bmdma_stop     = pdc2026x_bmdma_stop,