[PATCH] driver core: platform_get_irq*(): return -ENXIO on error

platform_get_irq*() cannot return 0 on error as 0 is a valid IRQ on some
platforms, return -ENXIO instead.

Signed-off-by: David Vrabel <dvrabel@arcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 461554a..89b2683 100644 (file)
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -61,7 +61,7 @@ int platform_get_irq(struct platform_device *dev, unsigned int num)
 {
        struct resource *r = platform_get_resource(dev, IORESOURCE_IRQ, num);
 
-       return r ? r->start : 0;
+       return r ? r->start : -ENXIO;
 }
 EXPORT_SYMBOL_GPL(platform_get_irq);
 
@@ -98,7 +98,7 @@ int platform_get_irq_byname(struct platform_device *dev, char *name)
 {
        struct resource *r = platform_get_resource_byname(dev, IORESOURCE_IRQ, name);
 
-       return r ? r->start : 0;
+       return r ? r->start : -ENXIO;
 }
 EXPORT_SYMBOL_GPL(platform_get_irq_byname);