i2c/ibm-iic: Drop NO_IRQ

Drop NO_IRQ as 0 is the preferred way to describe 'no irq'
(http://lkml.org/lkml/2005/11/21/221). This change is safe, as the driver is
only used on powerpc, where NO_IRQ is 0 anyhow.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Sean MacLennan <smaclennan@pikatech.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index b1bc6e2..2bef534 100644 (file)
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -668,12 +668,12 @@ static int __devinit iic_request_irq(struct of_device *ofdev,
        int irq;
 
        if (iic_force_poll)
-               return NO_IRQ;
+               return 0;
 
        irq = irq_of_parse_and_map(np, 0);
-       if (irq == NO_IRQ) {
+       if (!irq) {
                dev_err(&ofdev->dev, "irq_of_parse_and_map failed\n");
-               return NO_IRQ;
+               return 0;
        }
 
        /* Disable interrupts until we finish initialization, assumes
@@ -683,7 +683,7 @@ static int __devinit iic_request_irq(struct of_device *ofdev,
        if (request_irq(irq, iic_handler, 0, "IBM IIC", dev)) {
                dev_err(&ofdev->dev, "request_irq %d failed\n", irq);
                /* Fallback to the polling mode */
-               return NO_IRQ;
+               return 0;
        }
 
        return irq;
@@ -719,7 +719,7 @@ static int __devinit iic_probe(struct of_device *ofdev,
        init_waitqueue_head(&dev->wq);
 
        dev->irq = iic_request_irq(ofdev, dev);
-       if (dev->irq == NO_IRQ)
+       if (!dev->irq)
                dev_warn(&ofdev->dev, "using polling mode\n");
 
        /* Board specific settings */
@@ -766,7 +766,7 @@ static int __devinit iic_probe(struct of_device *ofdev,
        return 0;
 
 error_cleanup:
-       if (dev->irq != NO_IRQ) {
+       if (dev->irq) {
                iic_interrupt_mode(dev, 0);
                free_irq(dev->irq, dev);
        }
@@ -790,7 +790,7 @@ static int __devexit iic_remove(struct of_device *ofdev)
 
        i2c_del_adapter(&dev->adap);
 
-       if (dev->irq != NO_IRQ) {
+       if (dev->irq) {
                iic_interrupt_mode(dev, 0);
                free_irq(dev->irq, dev);
        }