ARM: amba: make irq 0 invalid

Fix core bus and MMCI such that irq 0 means that there is no IRQ
attached.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index 82b65e1..d15acbb 100644 (file)
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -564,9 +564,9 @@ int amba_device_add(struct amba_device *dev, struct resource *parent)
        if (ret)
                goto err_release;
 
-       if (dev->irq[0] != NO_IRQ)
+       if (dev->irq[0] && dev->irq[0] != NO_IRQ)
                ret = device_create_file(&dev->dev, &dev_attr_irq0);
-       if (ret == 0 && dev->irq[1] != NO_IRQ)
+       if (ret == 0 && dev->irq[1] && dev->irq[1] != NO_IRQ)
                ret = device_create_file(&dev->dev, &dev_attr_irq1);
        if (ret == 0)
                return ret;

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 0d955ff..304f2f9 100644 (file)
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1325,7 +1325,7 @@ static int __devinit mmci_probe(struct amba_device *dev,
        if (ret)
                goto unmap;
 
-       if (dev->irq[1] == NO_IRQ)
+       if (dev->irq[1] == NO_IRQ || !dev->irq[1])
                host->singleirq = true;
        else {
                ret = request_irq(dev->irq[1], mmci_pio_irq, IRQF_SHARED,