Merge tag 'driver-core-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fix from Greg KH:
 "Here is a single driver core fix that reverts an older patch that has
  been causing a number of reported problems with the platform devices.

  This revert has been in linux-next for a while with no reported issues"

* tag 'driver-core-3.16-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  platform_get_irq: Revert to platform_get_resource if of_irq_get fails

1 files changed, 14 insertions, 4 deletions

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 9e9227e1762d..eee48c49f5de 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -89,8 +89,13 @@ int platform_get_irq(struct platform_device *dev, unsigned int num)
         return dev->archdata.irqs[num];
 #else
         struct resource *r;
-        if (IS_ENABLED(CONFIG_OF_IRQ) && dev->dev.of_node)
-                return of_irq_get(dev->dev.of_node, num);
+        if (IS_ENABLED(CONFIG_OF_IRQ) && dev->dev.of_node) {
+                int ret;
+
+                ret = of_irq_get(dev->dev.of_node, num);
+                if (ret >= 0 || ret == -EPROBE_DEFER)
+                        return ret;
+        }
 
         r = platform_get_resource(dev, IORESOURCE_IRQ, num);
 
@@ -133,8 +138,13 @@ int platform_get_irq_byname(struct platform_device *dev, const char *name)
 {
         struct resource *r;
 
-        if (IS_ENABLED(CONFIG_OF_IRQ) && dev->dev.of_node)
-                return of_irq_get_byname(dev->dev.of_node, name);
+        if (IS_ENABLED(CONFIG_OF_IRQ) && dev->dev.of_node) {
+                int ret;
+
+                ret = of_irq_get_byname(dev->dev.of_node, name);
+                if (ret >= 0 || ret == -EPROBE_DEFER)
+                        return ret;
+        }
 
         r = platform_get_resource_byname(dev, IORESOURCE_IRQ, name);
         return r ? r->start : -ENXIO;