* LOCKING:
* spin_lock_irqsave(host lock)
*/
-void ata_bmdma_start (struct ata_queued_cmd *qc)
+void ata_bmdma_start(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
u8 dmactl;
if (rc)
goto err_out;
- if (!legacy_mode) {
+ if (!legacy_mode && pdev->irq) {
+ /* We may have no IRQ assigned in which case we can poll. This
+ shouldn't happen on a sane system but robustness is cheap
+ in this case */
rc = devm_request_irq(dev, pdev->irq, pi->port_ops->irq_handler,
IRQF_SHARED, DRV_NAME, host);
if (rc)
ata_port_desc(host->ports[0], "irq %d", pdev->irq);
ata_port_desc(host->ports[1], "irq %d", pdev->irq);
- } else {
+ } else if (legacy_mode) {
if (!ata_port_is_dummy(host->ports[0])) {
rc = devm_request_irq(dev, ATA_PRIMARY_IRQ(pdev),
pi->port_ops->irq_handler,
* @pdev: PCI device
*
* Some PCI ATA devices report simplex mode but in fact can be told to
- * enter non simplex mode. This implements the neccessary logic to
+ * enter non simplex mode. This implements the necessary logic to
* perform the task on such devices. Calling it on other devices will
* have -undefined- behaviour.
*/
/* Filter out DMA modes if the device has been configured by
the BIOS as PIO only */
- if (adev->link->ap->ioaddr.bmdma_addr == 0)
+ if (adev->link->ap->ioaddr.bmdma_addr == NULL)
xfer_mask &= ~(ATA_MASK_MWDMA | ATA_MASK_UDMA);
return xfer_mask;
}