diff options
Diffstat (limited to 'drivers/ata/pata_arasan_cf.c')
| -rw-r--r-- | drivers/ata/pata_arasan_cf.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c index e9cf31f38450..63f39440a9b4 100644 --- a/drivers/ata/pata_arasan_cf.c +++ b/drivers/ata/pata_arasan_cf.c @@ -818,12 +818,19 @@ static int arasan_cf_probe(struct platform_device *pdev) else quirk = CF_BROKEN_UDMA; /* as it is on spear1340 */ - /* if irq is 0, support only PIO */ - acdev->irq = platform_get_irq(pdev, 0); - if (acdev->irq) + /* + * If there's an error getting IRQ (or we do get IRQ0), + * support only PIO + */ + ret = platform_get_irq(pdev, 0); + if (ret > 0) { + acdev->irq = ret; irq_handler = arasan_cf_interrupt; - else + } else if (ret == -EPROBE_DEFER) { + return ret; + } else { quirk |= CF_BROKEN_MWDMA | CF_BROKEN_UDMA; + } acdev->pbase = res->start; acdev->vbase = devm_ioremap(&pdev->dev, res->start, |